sains form 1 objektif

Science - Paper 1 And Paper 2

Test 1 05 April 2012 1 Hour

Class : Marks :

1. The following statements are true about science exceptPernyataan berikut adalah benar mengenai sains kecuali

A battery can produce electricity.bateri boleh menghasilkan arus elektrik

B wood can float on water.C body temperature rises during work out.D Sunday is a holiday in many countries.

2. Which of the following incident is not a natural phenomena?

A A baby cries when she is hungry.B A baby grows up to become an adult.C An object will fall if release at mid air.D Ice melts if surrounding temperature rises.

3. Which of the following activities require the use of science?

A Making announcements through a speaker.B Plucking rambutans with a bamboo stick.C Counting with your fingers.D Chopping vegetable with a chopper.

4. A person who is expert in natural or physical sciences is

A a scientist.B a doctor.C a lawyer.D an astronaut.

5. Which of the following is not a natural phenomenon?

A Price of petrol increases every year.B There are two ways to Seremban from Kuala Lumpur.C A mobile phone is more expensive than a ruler.D Thunder is heard after lightning.

6. The following are natural phenomena except

A volcanic eruption.B pollution.C earthquake.D thunder.

7. Science can be described as1

A the study of how natural phenomena occurs.B the study of how different countries fight crimes.C the study of different types of culture.D the price of water variation in different countries.

8. Which of the following is a science-related career?

A Dentist.B Police.C Lawyer.D Bus driver.

9. Which of the following terms best describe the work of studying planets and stars?

A MeteorologyB PhysiologyC AstronomyD Geology

10. Which of the following statements about science is incorrect?

A Science helps in inventing machines and technology.B Science helps human being to understand the environment.C Science provides the knowledge to build rocket.D Science can make dead organic matter alive.

11. The following is science-based subject except

A medicine.B history.C communication technology.D biotechnology.

12. Which of the following is not a man-made object?

A Televisions.B Spaceship.C Gold.D Radio.

13. The study of science is important to human because

A it improves our health.B it helps baby to become an adult.C it helps us to get higher pay.D it helps us to be a leader.

14. Which of the following statement is incorrect about technological improvement?

A Technological improvement increases rate and efficiency of productivity.B Technological improvement can fertilize an ovum from a bear with a sperm from a deer, to

produce new species.

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C Technological improvement enables us to watch a Badminton Cup live.D Technological improvement makes the process of detecting disease easier.

15. Which of the following is a special feature of natural phenomena?

A The occurrence depending on certain periods only.B They can be stopped by human.C They are not man-made.D They occur in some places only.

16. Which of the following statement is true about inference?

A The Sun rise in the North.B An insect has 6 legs.C The temperature at foot hill is higher than the temperature on a hill.D The Earth revolves round the Sun.

17. Which of the following is incorrect about science?

A Science enable doctors to find medical solutions to cure disease.B Science has made it possible for astronaut to land on the Moon.C Science has created pollution to human.D Science can be described as the study of how natural phenomena occur.

18. Which of the following statements concerning the improvement of science and technology is incorrect?

A We can communicate with friends in overseas by e-mail.B Human can reach the Moon.C Many types of diseases can be cured.D We can bring dead organisms alive.

19. Which of the following is not a natural phenomenon?

A Pollution.B Earthquake.C Volcano eruption.D Hot spring.

20. Which of the following is correct about science?

A Science is about technological knowledge to meet human needs.B Science is about experiment conducted by scientist.C Science is the common laboratory rule.D Science refers to the organized knowledge of the physical world and its natural phenomena.

21. Which of the following inferences is/are true?

I Planet Mars revolves around the Sun.II The Earth sets in the East.III The Sun rises in the West.

A I, II, III

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B I, IIC II, IIID I only

22. Which of the following statements is/are true about science?

I The Sun revolves around the Earth.II The Moon revolves around the Earth.III Light travels faster than sound.

A I, II, IIIB I, IIC II, IIID I only

23. The following is the importance of science to mankind except

I science helps mankind to understand about universe.II science helps mankind to be successful.III science helps mankind to earn respect.


24. Which of the following careers is/are science-based?

I Geologist.II Zoologist.III Accountant.


25. Which of the following incidents is/are not a natural phenomena?

I A baby cries when she feels hungry.II Solid ice cube melts under a hot sun.III Seeds germinated.


26. Which of the following statements is/are correct?

I Science is the study of religious.II Science helps mankind to invent solar cell to generate electricity.III Science has made it possible to invent machine which can fly in the air.

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27. Which of the following statements about science is/are incorrect?

I Science helps mankind to understand human behaviour.II Science helps mankind to invent machines.III Science helps mankind to solve problems.


28. Which of the following objects is/are not science-based?

I Gold.II Telephone.III Ship.


29. Which of the following incidents is/are natural phenomena?

I Volcanic eruption.II Earthquake.III Pollution.


30. Which of the following subjects is/are science-based?

I Engineering.II Medicine.III Music.


31. The period oscillation of a pendulum depends on the

A length of the pendulum.5

B mass of the pendulum.C size of the pendulum.D angle of oscillation.

32. The following is the steps in planning scientific investigation except

A making hypothesis.B testing science equipment.C interpreting data.D controlling variables.

33. The basic skill in a scientific investigation is

A making hypothesis.B predicting.C observing.D analyzing data.

34. Which of the following labels can be found on a bottle that contains alcohol?

A

B

C

D

35. P – Collect dataQ – Do observationR – Do experimentS – Make conclusionT – Analysis data

The above shows the skills of a science process. Choose the correct one.

A Q R P T SB R Q P T SC R Q T P SD T R Q S P

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36.

Where should we keep the materials that have a warning label as shown in the above diagram?

A Water.B Paraffin oil.C Plumbum container.D Alcohol.

37. Which of the following statements about the safety rules in laboratory is not true?

A Return all chemical substances to the original place after use.B Do not eat or drink in the laboratory.C Report any accident to teacher at once.D Pour unused chemical substances back into their bottles.

38. The following statement is true about variables in an experiment except that

A some variables change due to response change of other variables.B some variables can be kept constant.C some variables are changed by the experimenter. D some variables are allowed to change uncontrollably.

39. In some experiment, changing the condition is mainly for

A controlling the variables.B doing the experiment in various places.C doing the experiment at different times.D repeating the experiment as many times as it can.

40. Which of the following means by analyzing and interpreting?

A Seeking the meaning of what has been observed.B Thinking of whether the hypothesis is valid.C Collecting data.D Summarising and writing a report.

41. Below are the correct methods to heat chemical material in testing tube, except

A use pincers to hold a testing tubeB do not put a hot testing tube directly into water.C put as much chemical substances as possible into a testing tube in order to get a specific result.D shake the testing tube gradually.

42. Where does the sodium metal should be kept in a laboratory?

A In the water.B On a clean table.C In the paraffin oil.D At cold and dry place.

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43. Which of the following statements is true?

A Observed data can be easily remembered.B Observed data needs to be recorded but it does not serve any purpose.C Observed data must be neatly tabulated and recorded.D Observed data can be written on a rough piece of paper.

44.

Kim Seng needs the time of 20 complete oscillations of the pendulum shown above to solve a mathematical problem. Calculate the time taken to solve the mathematical problem if the pendulum takes 1 second to swing from X to Y?

A 1 secondB 10 secondsC 20 secondsD 40 seconds

45. Which of the following symbols is correctly labelled?

A

B

C

D

46. Fire caused by petrol can be extinguished by using the following extinguishers except

A acid soda extinguisher.B BCF extinguisher.C carbon dioxide extinguisher.D dry powder extinguisher.

47. Which of the following a scientist should not do?

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A Form a hypothesis.B Change experimental data when necessary.C Identify problems.D Plan experiments.

48. If a hypothesis is valid, it should be made into a

A experiment.B result.C theory.D survey.

49. Which of the following is true about the necessity to make a hypothesis?

A It speeds up the process of getting the experiment result.B It gives a clear idea of what we are trying to find and also to identify a problem.C It makes it faster to collect data.D It makes it easier to collect apparatus.

50. Which of the following is true about the special feature of scientific investigation?

A No matter who carries out the investigation, the results should be the same.B All the investigations must be equipped with sophisticated equipment.C Investigation can only be carried out by special scientists.D Investigation cannot be carried out by an individual.

51.

The above shows a swinging pendulum. It completes one oscillation when it moves from

I ZYX II XYZYX III YXYZY


52. Steps in scientific method must not involve

I changing data to suit the hypothesis.II determining the variables in every experiments.III analyzing and interpreting data carefully.


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53. A scientist must possess the ability to

I identify problems.II carry out experiments.III interpret data.


54. Sand can used to put out fire caused by

I methane.II wood.III petrol.


55. Choose the characteristics of yellow flame.

I Produce shoot.II Not very hot.III Purple in colour.


56. In scientific method, steps that should be taken are

I making a hypothesis.II controlling the variable.III making statements based on the results of experiment.


57. Choose chemical substance that is corrosive.

I Diluted alkaline.II Concentrated acid.III Alcohol.

A I, II, IIIB I, IIC II, III

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D I only

58. While doing experiment, accuracy of a reading can be increased by…

I Repeat the measurement for a few times.II Avoid parallax error.III Count the systematic error of a measuring tool .


59. Which of the following are benefits of science and technology?

I To control the Earth forever.II To improve our standard of living.III More effective communication.


60. The skills of science process include …

I making conclusion.II doing observation.III recording and analysing data.


61. Which of the following statements about the safety rules in laboratory is/are true?

I Read all the instructions carefully before start doing any activities or experiments.II Do not use hands to touch any chemical substance.III Testing chemical substance is allowed.


62.

The above shows a label sticked on a bottle with an unknown solution. What should we do when we deals with the solution?

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I Use a small quantity only.II Wear hand gloves.III Keep in water.


63. Pendulum's weight

Length of string (cm)

Period for 10 oscillations (s)

2N 16 84N 16 84N 8 4

The above shows the results of an experiment on a free-swinging pendulum. What conclusion can be made?

I Pendulum’s weight does not affect the period of oscillations.II Pendulum's length affects the period of oscillations.III Pendulum's weight and length affect the period of oscillations.


64. When using a Bunsen burner, we should do the following to avoid accidents.

I Do not heat flammable substances like alcohol directly.II Do not point the test tube to any one when heating solutions.III Throw away the Bunsen burner if it is too hot.


65. Which of these actions involve in scientific investigations?

I Modify information to suit hypothesis.II Analyzing data and interpreting data.III Controlling variables.


66. The S.I. unit for temperature measured by a thermometer is

A degrees Fahrenheit.B degrees Celsius.C ampere.

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D Newton.

67. Which of the following prefixes is used to denote the smallest value?

A NanoB MicroC MegaD Giga

68. Which of the following is incorrect?

Quantity S.I. unitA Time Second (s)B Mass Kilogram (Kg)C Length Centimeter (cm)D Temperature Kelvin (K)

69. Which of the following is S.I. unit?

A kiloB deciC centiD kelvin

70. Which of the following is SI unit for time?

A kgB mC AD s

71. Which of the following is SI unit for temperature?

A AmpereB KelvinC SecondD Metre

72. Which of the following is SI unit for mass?

A GramB Degree CelsiusC KilometreD Ampere

73. 0.1 metre can be written as

A 1 cmB 10 cmC 100 cmD 1000 cm

74. Which of the following value is equivalent to 0.001 metre?

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A 1 cmB 1 mmC 1 kmD 1 m

75. 0.5 kg is equivalent to

A 0.5 gB 5 gC 50 gD 500 g

76. Which of the following conversion is not correct?

A 0.1 m = 10 cmB 1 mm = 0.01 cmC 0.03 m = 3 cmD 0.004 m = 4 mm

77. If 1 cm on a map is equivalent to 100 km . What is the actual distance between Town X and Town Y if the distance on the map is 0.9 cm?

A 9 kmB 90 kmC 900 kmD 9000 km

78. Express 30 0 mg in kilogram and into standard form.

A 3 .0×102 kgB 3 .0×10−3 kgC 3 .0×10−4 kgD 3 .0×10−5 kg

79. Which of the following is the multiplication factor for the prefix of micro?

A ¿10−1

B ¿10−2

C ¿10−4

D ¿10−6

80. 7 mg can be written as

A 710g

B 7100

g

C 71000

g

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D 710000

g

81. Which of the following is the SI unit for mass and weight?

Mass WeightA N kgB S kmC kg ND N S

82. Which of the following of the SI unit is incorrect?

Basic units SymbolsA kilogram kgB metre mC second sD ampere M

83. If an object is 85 mg, convert it into gram.

A 0.0085 gB 85×10−2 gC 8 .5×10−2 gD 8 .5×10−4 g

84. Which of the following is not a base physical quantity?

A Electrical current.B Time.C Length.D Electrical power.

85. 0.003 m is similar to

A 3 mmB 3 cmC 30 kmD 30 nm

86. Which of the following equations is not true?

A 20 Kg + 50 g = 20050 gB 0.2 m + 30 cm = 0.5 mC 10 cm + 2 mm = 102 mmD 0.7 Kg + 15 g = 0.85 Kg

87. If the length and width of a paper are 20 cm and 12 cm respectively, what is the total area of this piece of paper in mm2?

A 24

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B 240C 24000D 240000

88.

How much is the total area of the piece of leaf on a graph paper as shown in the above diagram?

A 7B 8C 9D 10

89. Which of the following is a physical quantity?

A Roughness of the road.B Speed of a train.C Mass of a wood.D Colour of a car.

90. Which of the following statements is true about physical quantity?

A Something that can be measured.B Something that is very big.C Something that is very small.D Something that varies with time.

91. Which of the following is matched correctly?

Standard form Prefix formI 6102 2 MII 3103 g 3 kg

III 3105 m 5 mm


92. Which of the following is equivalent to 0.2 metre?

I 20 cm.II 200 mm.III 2 cm.

A I, II, IIIB I, II

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C II, IIID I only

93. The table below shows some physical quantities and its S.I unit. Which of the pair is matched incorrectly?

Physical quantity

S.I unit

I Length Metre (m)II Mass Kilogram (k)III Time Second (sec)


94. Which of the following is not a physical quantity?

I Speed of a car.II Colour of a building.III Roughness of the road.


95. Which of the following is physical quantity?

I Electric current.II Mass.III Density.


96. The wheels of a motorcycle make 100 turns in 2 minutes. What is the time taken for one turn?

I 1.2 seconds.II 0.12 seconds.III 0.012 seconds.


97. Which of the following equation is not true?

I 0.7 kg + 15 g = 0.85 kg

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II 30 kg + 70 g = 30070 gIII 30 cm + 2 mm = 302 mm


98. Which of the following is about the measurement of length?

I Distance between 3 lamp-posts.II Thickness of a sheet of paper.III Diameter of a bottle.


99. Which of the following units is use to measure volume?

I Gram.II Cubic centimetre.III Millimetre.


100.

Which of the following conversion is not correct?

I 0.1 m = 10 cmII 1 cm = 100 mmIII 0.01 cm = 1 mm


101.

Which of the following is matched correctly?

Prefix Multiplication factorI Mega 610II Centi 210III Milli 110


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D I only

102.

Which of the following S.I unit is matched correctly?

Basic quantity Basic unitI Mass Kilogram (kg)II Temperature Kelvin (K)III Electric current Ampere (A)


103.

Choose the following that is not true.

I 1 Kg = 1000 gII 1 m = 1000 cmIII 0.1 Km = 10 m


104.

Which of the following concerning temperature is true?

I Melting point of pure ice is at C0 .II The boiling point of pure water is at C.100III S.I. unit of temperature is Kelvin (K)


105.

Choose the S.I. unit for temperature readings taken with a thermometer.

I Degree Celsius.II Degree Fahrenheit.III Ampere.


106.

Which of the following statement is not true about weight?

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A A denser object is heavier.B In different places, the weight of an object varies.C Weight is the amount of matter in an object.D Gravity can influence the weight of an object.

107.

Which of the following statement is incorrect?

A Spring balance can be used to measure mass.B The mass of an object does not depend on gravitational pull.C The amount of matter in an object is mass.D The mass of an object always remain the same.

108.

Which of the following is true about the mass of an object?

A The mass of an object is heavier on the Moon.B The mass of an object varies in different places.C The mass of an object remains the same regardless of where it is measured.D The mass of an object depends on the pull of gravity force.

109.

Which of the following statements about the mass is not true?

A Mass is the quantity of matter in an object.B Mass can be measured by using the spring balance.C Mass of an object is fixed even if it is measured in another planet.D The gravity force does not affect the mass of an object.

110.

The following statements is true about weight except

A

the weight of an object on the Moon is

16 of its weight on the Earth.

B the weight of an object in a spaceship decreases when it gets further away from the Earth.C the value of weight varies in different places.D the weight of an object in the North Pole is smaller than its weight in the Equator.

111.

The unit for mass is

A hour.B meter.C centimetre.D kilogram.

112.

If the mass of an astronaut on the Moon is 75 kg, what is his mass on the Earth?

A 0 kgB 65 kgC 75 kgD 85 kg

113.

The instrument that can be used to measure the mass of an object is a

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A compression balance.B spring balance.C lever balance.D thermometer.

114.

The above diagram shows an instrument to measure the

A mass of an object.B weight of an object.C area of an object.D length of an object.

115.

Which of the following is true about weight?

A The weight of an object is the area of the object. B The weight of an object is the pull of gravity on the object.C The weight of an object is the mass of the object. D The weight of an object is the speed of the object.

116.

Choose the correct statement about weight and mass from the following.

A Mass is the pull of gravity on an object, weight is the amount of matter.B Weight is the pull of gravity on an object, mass is the amount of matter.C Human body may have weight but no mass.D Weight and mass are the same.

117.

Which of the following is incorrect?

Mass WeightA Amount of matter

in an object.Pull of gravity on an object.

B SI unit is kilogram. SI unit is Newton.C Value varies in

different places.Value is always constant.

D Measured by lever balance.

Measured by spring balance.

118.

What is the SI unit of weight?

A NewtonB KilogramC AmpereD Cubic metre

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119.

Mass of a dry, clean beaker P g

Mass of a beaker + 10 0 cm3 of

liquid

Q g

Based on the above table, what is the mass of 1 cm3of liquid?

A (P−Q )gB (Q−P )gC (Q−P )g

100D (P−Q )g

100

120.

· Pull of gravity of an object· Measure by compression balance· Value varies in different places

Which of the following has the above characteristics?

A Weight.B Mass.C Area.D Volume.

121.

Mass is

A the pull of gravity on an object. B its SI unit is Newton.C the value varies in different places.D the amount of matter in an object.

122.

Which of the following equipment is the most accurate in weighing?

A Spring balance.B Electronic balance.C Lever balance.D Compression balance.

123.

The weight of an astronaut is 150 N on the Moon, what is his weight on the Earth?

A 50 NB 150 NC 300 ND 600 N

124.

A student wants to measure a piece of plasticine in an experiment. What kind of balances is suitable?

A Lever balance.B Spring balance.C Compression balance.

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D Beam balance.

125.

In an experiment, a student needs to measure the weight of a plasticine. Which of these balances is suitable?

I Compression balance.II Lever balance.III Beam balance.


126.

Which of the following statement is not related to weight?

I Weight is measured by beam balance.II Weight is the amount of matter in an object.III The weight of an object remains the same regardless the place the weight is measured.


127.

Which of the following instrument is the most accurate in weighing?

I Electronic balance.II Beam balance.III Compression balance.


128.

Which of the following statement is not related to mass?

I The mass is measured by spring balance.II The mass of an object remains constant regardless the place the mass is measured.III Mass of an object is the amount of matter in the object.


129.

Choose the following statement which is true about weight and mass.

I Both weight and mass can be measured in Newton.II Weight changes according to the pull of gravity but mass remains constant.

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III Weight is measured by spring balance but mass is measured by beam balance.


130.

Choose the following that is used to measure weight.

I Spring balance.II Compression balance.III Lever balance.


131.

The figure below shows the comparison between weight and mass. Which of the following pair is matched correctly?

Weight MassI SI unit is N SI unit is kgII Value varies in

different placesValue is constant everywhere

III Pull of gravity on an object

Amount of matter in an object


132.

Which of the following is incorrect about weight?

I Measure by beam balance.II Value varies in different places.III Pull of gravity on an object.


133.

Which of the following is true about mass?

I The amount of matter in an object.II Value constant everywhere.III Measure by spring balance.

A I, II, III

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134.

Choose the following that is used to measure mass.

I Lever balance.II Spring balance.III Compression balance.


135.

Which of the following is true about the usage of International System of Units?

A Improve communication which can make comparisons easily.B Improve the accuracy of measurement.C Reduce typical types of instrument in the market.D Increase more types of instrument in the market.

136.

If standard unit system is not available, what will happen to the international communication?

A Information can be transferred easily. B Exchange of knowledge and data involving science cannot be carried out easily.C International trading can be operated at a faster pace.D Data collected by scientist can be sent at a faster pace.

137.

In 1960, the International Conference of Weight and Measurements in Paris agreed to use the International System of Units (SI) as international standard. What is the purpose of adopting this standard?

A So that arguments among scientist can be avoided.B To prove that the idea of French is more knowledgeable.C So that the diplomatic ties between countries can be strengthened.D So that discussions and ideas of scientist can be understood by scientist from all over the world.

138.

The following statements are true about the importance of using standard units except

A standardizing measuring units at international level.B counting can be simplified and there will be no confusion among countries.C there will be common communication in various fields.D measurement process can be faster.

139.

Which of the following statement is incorrect?

A Standardization is necessary because it facilitates analysis of data and information by comparison.

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B Standardization is necessary because it avoids problems related to the usage of different systems of unit in measurements.

C Standardization is necessary because it make consumers not able to compare prices.D Standardization is necessary because knowledge of science and technology can be exchanged

more effectively.

140.

S.I unit was introduced so that

I argument and confusion can be eliminated.II counting can be simplified.III trading can be carried out easier.


141.

Which of the following statements is/are true about the importance of standard unit?

I Trading can be operated smoothly and faster.II Big figures can be written in shorter forms.III All discussions and ideas can be understood by people from different countries.


142.

Various standard units have been adopted. What will happen if grocery goods are sold in different unit of weight?

I There will be confusion between consumer and trader.II Consumer will not be able to compare price.III Economies of the countries will growth.


143.

Based on to the above diagram, how many plumbum balls are needed to put into the measuring cylinder so as the water level increases to 100 cm3? The volume of a plumbum ball is 2 cm3.

A 5B 10

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C 15D 20

144.

When 30 drops of water are taken out from a burette, the water level drops from 60 cm3 to 51 cm3. Find the volume of 1 drop of water.

A 0.2 cm3

B 0.3 cm3

C 0.4 cm3

D 0.5 cm3

145. 4 0 cm3

of water is poured into a 10 0 cm3 beaker. An iron nail weighs 10 g and its density is

5 gcm−3 . How many nails are needed to put into the beaker, so as the water can fill the beaker completely?

A 10B 20C 30D 40

146.

Which of the following instruments is suitable to measure the length of a fish accurately?

A A measuring tape.B An external calipers.C A half metre ruler.D A meter ruler.

147.

A teacher wants to measure the length of a classroom. Which of the following instruments is suitable?

A A half-meter ruler.B A pair of vernier calipers.C A metre ruler.D A measuring tape.

148.

Choose the following which is not a derivative unit.

A Newton.B Watt.C Joule.D Kelvin.

149. Initially, there is 44 .6 cm3

of oil in a burette. 500 drops of the oil are then released into a beaker and

the level of oil in the burette decreased to 33 . 2 cm3 . Find the volume of each drop of oil.

A 0 .228 cm3

B 0 .0228 cm3

C 0 .064 4 cm3

D 0 .792 cm3

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150.

Which of the following is the unit for acceleration?

A m2

B ms−2

C ms−4

D kgms−1

151. Jasmine cycled at a speed of 2 ms−1

for 50 seconds. What is the total distance she had travelled?

A 50 mB 75 mC 100 mD 150 m

152.

Based on the above diagram, five stones are put into the measuring cylinder with 80 cm3of water.

What is the new level of water?

A 85 cm3

B 95 cm3

C 105 cm3

D 115 cm3

153.

If a car wheel turns 100 times in 2 minutes, what is the total time taken for a complete turning of the wheel?

A 0.02 sB 1.2 minC 1.2 sD 0.2 min

154.

Distance between city A and city B is 185 6 m . Mei Ling drives from city A to city B in 116 seconds. Mei Ling travels at a speed of

A 15 ms-1.B 16 ms-1.C 17 ms-1.D 18 ms-1.

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155.

According to the above diagram, what is the density of the cork if its mass is 0.5 g?

A 0 .1 gcm−3 .B 1 .0 gcm−3 .C 10 .0 gcm−3 .D 100 gcm−3 .

156. The suitable instrument to measure 2 3 cm3

of a liquid accurately is a

A test tube.B beaker.C pipette.D measuring cylinder.

157.

What is the liquid that contains in a clinical thermometer?

A Mercury.B Oil.C Water.D Acid.

158.

Which of the following mixtures can be separated by using a filter?

A Water and milk.B Sugar and water.C Sand and salt water.D Alcohol and water.

159.

Select the parts of a microscope that has been incorrectly matched with its functions.

Part FunctionA Eye lens Focus and magnify the

object.B Condenser Help to focus the light ray

to the specimen.C Mirror Reflect light to the object

lens.D Diaphragm Controls the quantity of

light get through the lens.

160.

A student wants to measure the volume of a chemical solution. Which measuring tool is suitable?

A Measuring cylinder.29

B Pipette.C Beaker.D Burette.

161.

Select the instrument that can be used to measure the volume of a solution with the greatest accuracy.

A Beaker.B Burette.C Pipette.D Test tube.

162.

Which of the following diagrams shows the correct way of measuring boiling point of water with a thermometer?

A

B

C

D

163.

Based on the above diagram, what is the volume of the stone?

A 9 cm3

B 11 cm3

30

C 47 cm3

D 58 cm3

164. In an experiment, a student requires 2 0 mm3

of liquid from a bottle. Which of the following measuring instrument should be used?

A Beaker.B Burette.C Measuring cylinder.D Pipette.

165.

In an experiment, 1 5 mlof water is poured into a beaker which has a volume of 150 ml .If one

marble can displace 4 .5 ml of water, how many marbles is required to fill the beaker completely?

A 20B 25C 30D 35

166. Which of the following instruments is capable of measuring up to 0 .1 cm3

accurately?

A Burette.B Beaker.C Measuring cylinder.D Vernier calipers.

167.

A student wants to measure a few rods with lengths measuring between 1 2 cm and 2 2 cm. Which instrument is suitable for this purpose?

A Vernier calipers.B Opisometer and thread.C Internal calipers.D Ruler.

168.

Based on the above diagram, find the volume of the stone.

A 6 cm3

B 16 cm3

C 30 cm3

D 46 cm3

31

169.

Two corks of equal sizes are used in the above diagram. What is the volume of one cork?

A 6 cm3

B 3 .5 cm3

C 3 cm3

D 3 cm2

170.

In an experiment, a student needs to measure the volume of water by using a measuring cylinder. Which eye position is correct to read the water level mark?

A WB XC YD Z

171.

A student wants to measure a ball bearing in an experiment, which of the following instruments is most suitable?

A Micrometer screw gauge.B Vernier calipers.C Internal calipers.D Measuring tape.

172.

What is the area of the irregular shape shown in the above diagram?

A 8 cm2

B 9 cm2

C 10 cm2

32

D 11 cm2

173.

In an experiment, a student poured 4 0 ml of copper sulphate solution into a burette. Given that after

releasing 20 drops of the solution, the reading became 18 ml . Determine the average volume of one drop of the solution.

A 1 .0 mlB 1 .1 mlC 1 .2 mlD 1 .3 ml

174.

In an experiment, three pieces of polystyrene are tied to a string. Which of the following is not needed to measure the volume?

A Beaker.B Measuring cylinder.C Rock.D Water.

175.

Which of the following is incorrect?

Measurements UnitsA Length m,cm and mm

B Diameter m,cm and mm

C Area m2 ,cm2 and mm2

D Volume m2 ,cm2 and mm2

176.

The following statements are true about measurement except

A accuracy refers to the proximity of a measurement to its true value.B a measurement is accurate if there is no error.C vernier calipers have accuracy up to 0.001cm.D parallax error refers to the reading error cause by incorrect position of eye while reading.

177.

Given that the volume of one marble is 1 cm3 . Based on the above diagram, how many marbles are

needed to increase the water level to 120 cm3?

A 5B 10C 20D 120

33

178.

Length 6 cmHeight PWidth Q

The above shows the dimension of a box with a volume of 14 4 cm3 . What is the possible value of P and Q?

P QA 2cm 72cmB 8cm 4cmC 3cm 8cmD 8cm 8cm

179.

The steps that we can take to maximize the accuracy of a measurement are

I Placing the eye correctly to the scale.II Take a few measurement.III Try to avoiding parallax errors.


180.

Which of the following tools is used to measure length?

I Ruler.II Micrometer.III Vernier caliper.


181.

The following shows some apparatus matched to its functions. Which of the pairs is/are matched correctly?

Apparatus FunctionI Burette Measure the mass of

an irregular object.II Vernier

calipersMeasure the length of an object such as external and internal of a test tube.

III Graph paper Estimate the area of an irregular object.


34

D I only

182.

Which of the following measuring tools are suitable to measure a small volume of liquid?

I A beaker.II A pipette.III A burette.


183.

Which of the following statements is/are true about measurement?

I A measurement is accurate if there is no error.II Parallax errors can be avoided by placing the eye directly to the scale.III Accuracy refers to the proximity of a measurement.


184.

Which of the following measuring tools can be used to measure a very short length accurately?

I Vernier calipers.II Micrometer screw gauge.III Internal calipers.


185.

Which of the following statements about taking readings is/are correct?

I If a hand lens is used to see the scale, parallax errors will be eliminated.II Parallax errors occur mainly due to incorrect position of the eye when taking readings.III By placing the eye directly above the scale, parallax errors will be eliminated.


35

186.

The above diagram shows the process of filtration. Which of the following P, Q and R is labelled correctly?

I P – ResidueII Q – MixtureIII R – Filtrate


187.

Which of the following measuring tools is/are suitable to measure a curve?

I Ruler and calipers.II Ruler and thread.III Ruler and opisometer.


188.

The below figure shows some derivative quantities and its relationship to physical quantities. Which of the following pair is/are true?

Derivative quantities

Relationship

I Density

Area

Mass

II Speed

Time

Distance

III Acceleration

Time Time

Distance


189.

Which of the following is not true?

I 1 hour = 600 seconds.II 1 day = 24 hours.III 1 year = 365 days.

36


190.

The below figure shows some tools and its functions. Which of the following pair is matched correctly?

Tool FunctionI Cone flask Hold fluidsII Spatula Shift powder form of

chemical substanceIII Burette Measure the volume of

liquid accurately


191.

The quantity of light that enters the microscope can be controlled by

I diaphragm.II condenser.III mirror.


192.

The length of a winding road on a map can be measured by using

I internal calipers.II string.III ruler.


193.

Which of the following measuring tools can be used to measure the thickness of the wall of a beaker?

I Ruler.II Internal calipers.III External calipers.


37

D I only

194.

The cell is

A a thing which contains protein and vitamin.B the smallest basic unit of living things.C a place to produce food and mineral.D an organ of human body.

195.

The basic unit of living of an animal is called

A vacuole.B nucleus.C cell.D organ.

196.

Based on the above diagram, X is the part of an animal cell. State the function of X?

A To help a cell to reproduce.B To dissolve food material.C To protect the cell wall and maintain its shape.D To control all the activities of a cell.

197.

Based on the above diagram, Y is the part of an animal cell. State the function of Y?

A To control the entry and exit of material into a cell.B To dissolve food substances.C To manufacture food.D To control all the cell's activities.

198.

The following statements about cell are true except

A vacuole contains cellular liquid.B multicellular organisms have only one cell.C chlamydomonas contains chlorophyll.D nucleus controls cellular activities.

199.

The above diagram shows an animal cell. What is X?

38

A Cell membraneB ChloroplastC NucleusD Cytoplasm

200.

The above diagram shows a plant cell. What is Y?

A CytoplasmB ChloroplastC Cell membraneD Nucleus

201.

In the plant cell shown above, which part is not found in an animal cell?

A WB XC YD Z

202.

Which of the following structures controls the passage of materials moving in and out of a plant cell?

A Cell membraneB CytoplasmC NucleusD Vacuole

203.

The above diagram shows an animal cell. What is X and its function?

Name FunctionA Cytoplasm Dissolves food and

allows chemical reaction to take place.

B Nucleus Contains most of the genes that control the cell.

C Cell membrane

Allows the entry of oxygen and food into the

39

cell.D Vacuole Storage and protection

204.

Which of the following structures is not found in an animal cell?

A CytoplasmB Cell membraneC NucleusD Chloroplast

205.

Which of the structure P, Q, R and S is labelled incorrectly?

A P – cell wallB Q – cell membraneC R – nucleusD S – cytoplasm

206.

· P - Fluid like colourless jelly· Q - Contains genetic materia· R - Maintain cell's shapeP, Q and R are the structures of a cell. Which of the following matching is true?

P Q RA Cell wall Vacuole NucleusB Vacuole Nucleus Cell wallC Vacuole Cell wall NucleusD Nucleus Vacuole Cell wall

207.

The above diagram shows a microscope. Which part is for placing specimen for observation?

208.

The above diagram shows a microscope. Which of the following is not matched correctly?

40

Part FunctionA A To place a specimen for

observation.B B To control the amount of light.C C To maintain the position of the

eyepiece lens.D D To change the position of the

objective lens.

209.

Which of the following statements about the differences between animal cell and plant cell is wrong?

A Plant cell has cell wall and cell membrane but animal cell has only cell membrane.B There are chloroplast in plant cell but not in animal cell.C Plant cells, especially older ones, have a large central vacuole, which animal cells do not have.D Plant cell and animal cell can make their own food by undergoing photosynthesis.

210.

The following techniques using a microscope are incorrect except

A use the fine adjustment to focus your specimen.B the first step you observe the specimen is through high power objective.C when the specimen looks dark, increase the size of the diaphragm.D when looking through the microscope, you should close one side of your eye.

211.

Plant cell and animal cell have

A chloroplast.B cytoplasm.C chlorophyll.D cell wall.

212.

Plant cell has a definite shape because it has

A cell wall.B cell membrane.C nucleus.D chloroplast.

213. · Consists of protein, vitamin, water, mineral salt and carbohydrate.· Stores food and waste materials.· Allows chemical process to take placeWhich cellular structure possesses the above characteristics?

A Chloroplast.B Cell membrane.C Nucleus.D Cytoplasm.

214.

Which of the following about structure of cell is matched incorrectly?

Structure Function41

A Chloroplast Dissolves food substancesB Cell wall Protects the cellC Nucleus Controls all cell activitiesD Vacuole Contains cellular liquid

215.

Which of the following about microscope is not matched correctly to its function?

Part FunctionA Clip To hold the glass slide in

its positionB Diaphragm To reflect the light to the

objective lensC Eyepiece To adjust the image of

specimenD Stage To mount the glass slide

216.

The following statements are incorrect except

A all animal cells have cell walls.B the main function of nucleus is to protect cells.C all cells have chloroplast.D protoplasm consists of nucleus and cytoplasm.

217.

Which of the following is not correctly matched?

Animal cell Plant cellA Smaller in size Larger in sizeB No cell wall Has cell wallC No definite shape Has definite shapeD Has chloroplast No chloroplast

218.

Which of the following statements is incorrect?

A All living things consist of cells.B The smallest basic unit of an animal or plant is called cell.C A cell is responsible for carrying out the life processes of living things.D All cells have similar shape.

219.

It is not advisable to lower the objective lens when focusing on microscope specimen because it might

A spoil the microscope.B hurt our eyes.C damage the specimen.D touch the specimen.

220.

Onion cell has a structure that is similar to cheek cell. It is

A cell membrane.B vacuole.

42

C cytoplasm.D cell wall.

221.

Based on the above diagram, what is the function of structure Z?

A To produce food.B To protect cell.C To control all cellular activities.D To dissolve food substances.

222.

To focusCoarse adjustmentFine adjustmentIn low-power or high-power objective lensThe above information refers to which part of a microscope?

A Diaphragm.B Objective lens.C Adjustment knobs.D Eyepiece.

223.

Which of the following manufactures food through photosynthesis?

A Cell wall.B Nucleus.C Cytoplasm.D Chloroplast.

224.

The above diagram shows a plant cell. Which of the structures cannot be found in an animal cell?

A J and OB K and LC J, K and MD J, L and N

225.

The above diagram shows a plant cell. Which part produces food?

43

A J and KB M, N and O C L onlyD K only

226.

In a plant cell, which part contains cellular liquid and its function is to hold minerals and sugar?

A Cytoplasm.B Cell membrane.C Chloroplast.D Vacuole.

227.

In a plant cell, which part protects cell and maintains the its shape?

A Cell membrane.B Cytoplasm.C Cell wall.D Nucleus.

228.

Which of the following statements about onion cell is true?

A An onion cell does not have cell wall.B An onion cell does not have chloroplast.C An onion cell has a nucleus.D Its shape can be changed.

229.

Which of the following about human cheek cell is correct?

A A human cheek cell has chloroplast.B A human cheek cell has a cell wall.C A human cheek cell has protoplasm.D A human cheek cell does not have nucleus.

230.

Which of the following about onion cell and human cheek cell is matched correctly?

Onion cell Human cheek cellA Has nucleus No nucleusB Has vacuole No vacuoleC Has protoplasm Has nucleusD No protoplasm Has protoplasm

231.

Which of the following statement is true?

A Cell membrane of a plant cell control its shape but not for an animal cell.B Animal cells and plant cells store minerals and sugar.C All plant cells consist of vacuole while a few animal cells have vacuole.D All plant cells and animal cells have definite shape.

232.

The following statements are not correct except

44

A animal cells have protoplasm while plant cells do not have protoplasm.B animal cells and plant cells store food in cytoplasm.C animal cells and plant cells have chlorophyll.D animal cells and plant cells produce food through photosynthesis.

233.

Which of the following structures does not exist in plant cells but exist in animal cells?

A Chloroplast.B Cell wall.C Food vesicle.D Chloroplast and cell wall.

234.

Plants do not need to move to find for food because plants can perform …

I photosynthesis process.II absorption.III hibernation.


235.

Which of the following characteristics belong to a plant cell?

I Has a cell wall.II Has a definite shape.III Has large vacuole.


236.

The above shows an animal cell. State the function of the part labelled by Y?

I To isolate cell from excretory materials.II To dissolve food substancesIII Allows chemical processes to take place.


237.

Choose the following characteristics that belong to an animal cell.

45

I No cell wall.II No definite shape.III Has chloroplast.


238.

Which of the following cells has chlorophyll?

I Leaf cells.II Muscle cells.III Root cells.


239.

Which of the following is forms part of a microscope?

I Eyepiece.II Objective lens.III Diaphragm.


240.

Which of the following structures cannot be found in an animal cell?

I Cell wall.II Nucleus.III Cell membrane.


241.

· Manufacture food on its own· Contains of cellular liquid· Its shape is maintained by cell wallBased on the above information, which cell has all the above characteristics?

I Amoeba.II Hibiscus plant.III Fern.

46


242.

W - Produce food through photosynthesis process

X - Contains of cellular liquidY - Protects the cellBased on the above information, which of the following structures have the above characteristics?

I Chloroplast.II Vacuole.III Cell wall.


243.

Which of the following is true about cytoplasm?

I Keeps water and nutrients.II Allows chemical process to take place.III Makes chlorophyll.


244.

Which of the following structures cannot be found in a plant cell?

I Food vesicle.II Chloroplast.III Cytoplasm.


245.

Protoplasm in both plant and animal cells consists of

I nucleus.II cytoplasm.III chloroplast.


47

D I only

246.

In an experiment, a student drops a few droplets of iodine to a cheek cells which was attached to a slide. This was done to

I observe the cells clearly.II increase the size of the cell.III enlarge the shape of the cell.


247.

Which of the following is incorrect about vacuole?

I It contains of cellular liquid.II It contains of genetic information.III It dissolves food substances.


248.

Which of the following is true about chloroplast?

I To make food.II It contains of genetic information.III To control the shape of the cell.


249.

Which of the following is true about nucleus?

I To protect the cell.II To control all cellular activities.III It contains of genetic information.


250.

Which of the following is true about cell membrane?

I To control the passage of materials moving in and out from a cell.II To maintain the shape of the cell.

48

III To produce food.


251.

In a cell, protoplasm includes

I cytoplasm.II nucleus.III cell membrane.


252.

The above diagram shows a plant cell. What is the function of structure P?

I Controls the genetic material.II Protects the cell.III Controls the passage of substances.


253.

The above diagram shows a structure of an animal cell. What is the function of X?

I To decide cell characteristics.II To dissolve food substances.III To protect the cell external shock.


254.

Which of the following is true about cell wall?

I To protect the cell.49

II To produce food through photosynthesis.III To remove food substances.


255.

A specialized center of body function composed of several different types of tissues is called

A tissues.B cell.C system.D organ.

256.

Which of the following is an organ?

A Sperm.B Liver.C Ovum.D Muscle.

257.

Which of the following organs is about nervous system?

A Nerve, spinal cord and blood vessels.B Spinal cord, nerve and brain.C Pancreas, stomach and gullet.D Blood vessels and heart.

258.

Which of the following functions is about epithelial cells?

A Send message to the whole body.B Protect the body from infection of bacteria.C Protect the body surface.D It carries information from one part of the body to another.

259.

Which of the following is about the function of red blood cells?

A It is involved for reproduction.B It covers and protects the internal body system.C It carries food, oxygen and carbon dioxide in the body.D It kills microorganisms such as bacteria.

260.

50

The above shows the sequence of cell organization in human beings. Which is the following represents X?

A Uterus, ovum and ovary.B Nerve, spinal cord and sperm.C Stomach, kidney, spinal cord and uterus.D Spinal cord, brain and ear.

261.

Based on the above diagram, what is its function?

A It can unite with an egg-cell to form baby.B It controls the movement of our body.C It brings oxygen to different part of our body.D It causes some parts of the body to move by contracting.

262.


A It protects the cell below them from injury.B It causes some parts of the body to move by contracting.C It brings oxygen to different part of our body.D It carries information from one part of the body to another.

263.


A It forms a layer and protects the cell below them from injury.B It causes some parts of the body to move by contracting.C It brings oxygen to different part of our body.D It kills bacteria that enters the blood stream.

264.

A group of different tissues which carry out a specific function made up

A a skeletal system.B a system.C an organ.D a cell.

265.

Which of the following pairs is incorrect?

Cell FunctionA Nerve cells Carry impulse from

one part of body to another.

B Red blood cells Bring oxygen to

51

different part of body.

C Muscle cells Cause some part of the body to move by contracting.

D White blood cells

Protect the cell from injury.

266.

Choose the following which is untrue about the function of body systems.

System FunctionA Respiratory system Inhales oxygen

into the body.B Blood circulatory

systemCarries food materials to the whole body.

C Skeletal system Provides support to the body.

D Nervous system Protects internal organs.

267.

Lung in human body system helps to

A break down waste substances.B digest food.C absorb oxygen and give out carbon dioxide.D control all the activities of the body.

268.

The following is incorrect about the function of kidney except

A to hold and digest food.B to get rid of waste products.C to absorb water.D to produce sperm.

269.

Which of the following is not human cell?

A A red blood cell.B A white blood cell.C An epithelial cell.D A cell wall.

270.

Which of the following is true about the sequence of cell organisation in human?

A Cell → organ → tissue → system → humanB Cell → system → tissue → system → humanC Cell → tissue → organ → system → humanD Tissue → Cell → organ → system → human

52

271.

The above diagram shows the sequence of cell organization in human. Which of the following represents X and Y?

X YA Heart RespiratoryB Ear SkeletalC Pancreas DigestiveD Trachea Nervous

272.

The cells which form the skin are

A nerve cells.B muscle cells.C epithelial cells.D white blood cells.

273.

A student screamed when he touched a hot kettle accidentally. Which system controls this reaction?

A Muscular system.B Nervous system.C Respiratory system.D Digestive system.

274.

· P : Break down food into simple substance.

· Q : Receive signals and send messages to part of body to respond.

· R : Unite with an egg cell to form a baby.

· S : Produce reproductive cells and form a new individuals.

Based on the above information, which of the following represents P, Q, R and S?

P Q R SA Urinary

systemNervous system

Ovum Reproductive system

B Digestive system

Nervous system

Ovum Reproductive system

C Digestive system

Nervous system

Sperm Reproductive system

D Stomach Nerve cells

Reproductive system

Sperm

53

275.

· Kidney· Lung· SkinChoose the system that consists all the above organs.

A Urinary system.B Excretory system.C Blood circulatory system.D Digestive system.

276.

Below table shows some cells and its functions. Which of the pairs is/are matched incorrectly?

Cell FunctionA White

blood Protect body from microorganisms.

B Muscle Cause movement.C Ovum Unite with sperm and form

new individual.D Nerve Repair damaged tissue.

277.

The above diagram shows a human organ. Which of the following is the function of the organ?

A To exchange oxygen and carbon dioxide for respiration.B To control the activities of the body.C To pump blood in the body.D To break down food substances.

278.

The above diagram shows a system in human body. It is a

A digestive system.B excretory system.C urinary system.D respiratory system.

54

279.

What is the function of the organ shown above ?

A To filter and dispose of excrements.B To produce reproductive cells and form a new baby.C To protect the internal organs of human body.D To exchange oxygen and carbon dioxide gases in the alveolus.

280.

The function of the body system shown above is

A to supply oxygen to cell.B to get rid of excess water and unwanted dissolved substances as urine.C to carry unwanted excretory materials to the excretory organs.D to digest complex food into smaller molecules for the body to absorb.

281.

Based on the above diagram, choose the incorrect statement.

A It controls all body activities. B It can analyze before taking any action.C It transforms a powerful signal to communicate.D It receives signal from other organs in human body.

282.

Which of the following system is to support the body and to protect the internal organs?

A Reproductive system.B Respiratory system.C Muscular system.D Skeletal system.

283.

The human body system that inhales oxygen and exhales carbon dioxide is

A blood circulatory system.B nervous system.C respiratory system.D urinary system.

55

284.

· Carries out body movements· Usually act as opposing pairs to

produce movements· Contract and relax to produce

movementsThe above descriptions refer to a system in human body. It is the

A skeletal system.B muscular system.C nervous system.D excretory system.

285.

Which of the following system is to filter and dispose excrement that is no longer needed by our body?

A Respiratory system.B Reproductive system.C Excretory system.D Digestive system.

286.

· Sperm· OvumThe body system that requires the above is

A human system.B reproduce system.C blood circulation system.D reproductive system.

287.

Which of the following forms the excretory system?

A Skin, kidneys and pancreas.B Lung, skin and kidneys.C Kidneys, lungs and spinal cord.D Lung, pancreas and nerve.

288.

The above shows the sequence to form an organism. X, Y and Z represents

X Y ZA Microorganism Organ SkeletonB Cell Brain SystemC Cell Organ SystemD Sperm Ovum System

289.

Every living things needs to breathe all the time. Which of the following is matched incorrectly?

56

Organism Respiratory organA Grasshopper SkinB Man LungsC Worm SkinD Fish Gills

290.

Which of the following systems breaks complex food down into molecules small enough for the body to absorb?

A

B

C

D

291.

The above diagram shows various levels of a structural organization. Choose the correct example for level X.

A Heart.B Red blood cell.C Muscle.D Neuron.

292.

Which of the following is not the function of a skeleton?

A Body movement.B Body support.C Blood circulation.D Protection of internal organ.

57

293.

In which body system the above organ can be found?

A Digestion.B Respiratory.C Skeleton.D Blood circulation.

294.

The system responsible for taking in oxygen into human body is

A the skeletal system.B the nervous system.C the respiratory system.D the reproductive system.

295.

Which of the following cells send impulse to the whole body?

I Nerve cells.II Muscle cells.III Epithelial cells.


296.

Which of the following statements is true?

I Human are made up of many cells.II Human are made up of many organs.III Human are made up of many systems.


297.

The following about functions of white blood cells is true except

I to protect the body from bacteria infection.II to carry food, oxygen and carbon dioxide.III to help and enable movement of cell.


58

D I only

298.

The above diagram shows the sequence of organization of cells. X could be

I sperm.II stomach.III brain.


299.

The following statement about the above diagram is true except

I It filters and disposes of excrement that is no longer needed in our body.II It carries unwanted excretory materials to the excretory organs.III It carries oxygen and food materials to the whole body.


300.

The above diagram shows a system in a human body. What is its functions?

I To inhale oxygen into the body.II To dispose unwanted carbon dioxide from the body.III To digest food material such as starch, sugar and fat.


301.

Choose the cells that supply oxygen to different parts of the body.

59

I Red blood cells.II White blood cells.III Blood vessels.


302.

Choose the cells that serve as reproductive purpose.

I White blood cells.II Sperm.III Ovum.


303.

Choose the tissues that cover and protect the internal and external surfaces of body such as cheeks.

I Epithelial tissue.II Muscle tissue.III Nerve tissue.


304.

Which of the following organs are included in the digestion system?

I Stomach.II Liver.III Pancreas.


305.

Which of the following statements about tissues are true?

I Tissues are groups of cells with a common structure and function.II Epithelial tissues protect the cells below them.III Muscle tissues carry out the function of movement.


60

D I only

306.

Which of the following are the organs in the circulatory system?

I Blood vessels.II Heart.III Nerves.


307.

Living things need to eat to

I gain enough energy for daily activities.II grow.III to fulfill appetite.


308.

Which of the following statements about white blood cell is true?

I It protects the body from getting sick.II It takes the oxygen and nutrients to the whole body.III It does not have nucleus.


309.

Which of the following cells cannot be found in a female?

I Sperm.II Neuron.III Somatic cell.


310.

The following are organs except

I muscle.II small intestine.III ear.

61


311.

The following are tissues except

I red blood.II sperm.III skin.


312.

Which of the following organs are classified as part of the digestive system?

I Esophagus.II Liver.III Stomach.


313.

The following are organs of the skeletal system except

I muscle.II pelvic bone.III back bone.


314.

The following are systems in a human body except

I muscle system.II nervous system.III muscular system.


62

315.

How fast a liquid evaporates depends on the following except

A the temperature of the air.B the wind movements.C the size of the air particles.D amount of water vapour in the air.

316.

Physical changes of matter involve the absorption and release of heat. Which of the following pair is incorrectly matched?

Absorbs heat Releases heatA Boiling CondensationB Evaporation SublimationC Sublimation CondensationD Melting Freezing

317.

The below figure shows the differences between boiling and evaporation. Which of the following is incorrectly matched?

Boiling EvaporationA Fast process. Slow process.B Happens at boiling

point.Happens at any temperature.

C Depends on the temperature of environment.

Does not depend on the temperature of environment.

D Occurs throughout the liquid.

Occurs at the surface of the liquid.

318.

Which of the following does not happen when water boils?

A The force of attraction between water molecules will increase.B The particles will move very actively.C The size of the water molecules will increase.D Distance between the water molecules will increase.

319.

Based on the above diagram, which of the following represents process X, Y and Z?

X Y ZA Freezing Melting BoilingB Boiling Condensation MeltingC Melting Boiling SublimationD Melting Sublimation Boiling

320.


63

Absorbs heat Releases heatA Liquid→Solid Solid→LiquidB Liquid→Gas Gas→SolidC Solid→Gas Gas→LiquidD Gas→Liquid Liquid→Gas

321.


Physical process Change of stateA Solid→Liquid CondensationB Liquid→Gas EvaporationC Liquid→Vapour SublimationD Gas→Solid Freezing

322.

Based on the above diagram, which of the following represent process P?

A Evaporation.B Melting.C Freezing.D Condensation.

323.

Based on the above diagram, which of the following represents process X?

A Freezing.B Melting.C Boiling.D Sublimation.

324.

Based on the above diagram, which of the following represent process Y?

A Boiling.B Condensation.C Freezing.D Melting.

325.

Which of the following statement is false?

A Freezing point for water is 0 ° C .B Ice melts at 0 ° C .C Alcohol boils at 1000 °C .D Water boils at 100 °C .

64

326.

Which of the following does not show the process of sublimation?

A Solid carbon dioxide being heated in boiling tube.B Ammonium chloride being heated in boiling tube.C Mercury being heated in boiling tube.D Iodine being heated in boiling tube.

327.

Among the following activities, which does not involve the process of evaporation?

A Drying shoes.B Freezing fish in the refrigerator.C Acquire salt from sea.D Drying clothes.

328.

Based on the above diagram, which of the following represents X and Y?

X YA Absorbs heat Releases heatB Releases heat Absorbs heatC Absorbs heat Absorbs heatD Releases heat Releases heat

329.

The following are true about process P, except

I heat is absorbed.II particles loses energy. III depends on the amount of water vapour in the air.


330.

Based on the above diagram, which of the following substances will not go through process P?

I Copper sulphate.II Solid carbon dioxide.III Iodine.

65


331.

Below table shows the differences of evaporation and boiling. Which of the following are matched incorrectly?

Evaporation BoilingI Does not depend

on wind movements.

Depends on wind movements.

II Occurs at any temperature.

Occurs at boiling point.

III Very slow process.

Very fast process.


332.

The following are true about process X, except

I heat is released.II depends on the temperature of air.III very slow process.


333.

The following are true about process Y, except

I takes place at any temperature.II heat is released.III particles lose energy to surrounding and move slowly.


66

334.

Which of the following happen in process X?

I Ethanol boils at C78 .II Iron melts at C.100III Ice melts at C.0


335.

Which of the following freezing points of liquids is false?

I Alcohol = C78II Nitrogen = C210III Water = C0


336.

The following are true about the evaporation process, except

I is a fast process.II does not depend on the temperature of air.III occurs at any temperature.


337.

The following are true about the process of boiling, except

I takes place at C.0II occurs throughout liquid.III does not depend on wind movement.


67

338.

The speed of a liquid evaporates depends on

I its surface area.II the wind movements.III the amount of water vapour in the air.


339.

Which of the following involve in the process of sublimation?

I Heating of iodine.II Heating of ammonium chloride.III Heating of naphthalene.


340.

Below table shows the physical process that changes the state of a matter. Which of the following pairs is/are matched incorrectly?

Physical process Change of stateI Evaporation Solid GasII Sublimation Solid VapourIII Condensation Gas Liquid


341.

Below table shows the absorption and release of heat when there is a physical process that changes the state of a matter. Which of the following pairs is/are matched correctly?

Absorption of heat

Release of heat

I Evaporation SublimationII Melting FreezingIII Boiling Condensation


342.

When water freezes into ice, the water molecules

68

I lose heat.II become less active.III contracts in size.


343.

Which of the following statements is/are true?

I Ice melts at C.0II Water freeze at C.0III Water boils at C.100


344.

Which of the following is the S.I unit for measuring mass?

A Newton.B Kilogram.C Milligram.D Kelvin.

345.

An object P is found to be more matter than object Q. This shows that

A P occupies less space than Q.B P occupies more space than Q.C P has less mass than Q.D P has more mass than Q.

346.

The above diagram shows an inverted glass pressed into the water. What conclusion can be drawn from this experiment?

A Water cannot enter the glass because air has occupied the space.B Water cannot enter the glass because the density of air is lower.C Water cannot enter the glass because air has more volume than water.D Water cannot enter the glass because air has mass.

347.

Which of the following is the best definition for matter?

A Anything which has mass.B Anything which occupies space.

69

C Any living things which has mass and volume.D All living things and non-living things that has mass and occupies space.

348.

· Has mass· Occupies space· Living things and non-living thingsThe above descriptions refer to

A a solid.B an object.C a matter.D human beings.

349.

Which of the following statements about matter is false?

A Matter has volume because matter occupies space.B Matter has a definite shape and mass.C All living things and non living things are matter.D Matter is anything that occupies space.

350.

Which of these is a matter?

A Sound.B Light.C Electric current.D Plasticine.

351.

Which of these is not a matter?

A Living organisms.B Soil.C Sound.D Hydrogen gas.

352.

Which of the following statements about matter is not true?

A Matter has mass.B Matter is anything that takes up space.C Matter exists in solid, liquid and gas.D Physical form of matter cannot be changed.

353.

Choose the following which is not a matter.

A Dust.B Cockroach.C Time.D Air.

354.

Which of the following is a matter?

70

A Heat.B Gas.C Light.D Coldness.

355.

Which of the following statements about matter is true?

A Air, water, heat and living organisms are matter.B Matter has mass and occupies space.C Matter absorbs heat only.D All matter has the same definite shape.

356.

Based on the experiment shown in the above diagram, what conclusion can be made?

A Air has energy.B Air occupies space.C Air has mass.D Air has pressure.

357.

The above diagram shows balloon X and balloon Y. When air is pumped into the balloon, it expanded. Which of the following inference is correct ?

A The balloon without air is lighter.B Air has mass.C Energy can be transferred. D Air occupies space.

358.

Matter is anything that is

A solid.B has mass.C has mass and occupies space.D solid and occupies space.

359.

The following are matter except

I sound.II copper sulphate crystals.

71

III ammonia.


360.

In an experiment, a student inverted a glass with a piece of paper pasted inside and pressed into a beaker which contains of water. The piece of paper did not get wet. This shows that

I air in the glass prevents water from entering the glass.II air has occupied the space in the glass.III water is being pressured out from the glass.


361.

Which of the following is incorrect about matter?

I Can be seen by naked eyes.II Made up of particles.III Can be classified into solids, liquids and gases.


362.

A matter must

I have mass.II occupy space.III have atoms.


363.

Which of the following statements about matter is correct?

I When heated, its volume increased.II When cooled, the matter is contracted.III Matter has a definite shape.


72

364.

Which of the following statements about matter is incorrect?

I Anything that has undergone life process only.II Some matter has mass but do not occupy space.III Matter has volume because matter occupies mass.


365.

Has massOccupies spaceNon-living thingsWhich of the following did not fulfill all the above characteristics?

I Light.II Water.III Living organisms.


366.

Has massOccupies spaceLiving things and non-living thingsWhich of the following have all the above characteristics?

I Heat.II Hydrogen gas.III Soil.


367.

The above diagram shows two balloons where A is deflated and balloon B is inflated. What conclusion can be made based on the diagram?

I Air has mass.II Air fills up space.III Air particles in balloon B are larger.

73


368.

Air is pumped into a balloon by using an air pump and caused the balloon to inflate. What can you infer from this information?

I Air occupies space.II Air has mass.III Air has pressure.


369.

Which of the following groups has the most advanced brain?

A Animal.B Bird.C Human.D Shark.

370.

Which of the following is not the right way to protect your eyes?

A Avoid looking at the sun for too long.B Take more food which is rich in vitamin A.C Rub your eyes with hands if it is itchy. D Do not sit too close to television.

371.

Human beings have the most developed brains. That is why human beings are able to do a lot of things except

A to solve problems.B to make decisions.C to see through walls.D to invent new things.

372.

Which of the following statements is incorrect about human?

A Human body consists of millions of cells which are organized into tissues, organs and systems.B Human beings are considered complex organism.C Human beings have the ability to think and solve problems.D Human beings can see microorganism with their naked eyes.

373.

Human beings are considered complex organism. Which of the following is not found in a human body?

A Nerve cell.B Muscle cell.C Epithelial cell.

74

D Cell wall.

374.

Which of the following group has the most developed brain?

I Human.II Robot.III Animal.


375.

Human beings have the most advanced brains which enable them

I to make new inventions to improve the quality of life.II to think creatively.III to make decisions strategically.


376.

Human beings are considered as complex organism. Which of the following is incorrect to take care of our body system?

I Exercise regularly.II Take more vitamin.III Smoke less than 1 cigarette daily.


377.

Animals are different from human because animals are not able to

I develop new technology.II improve on their quality of life.III analyze and solve problems.


378.

Which of the following are the correct ways to take care of our body system?

I Do not smoke and take drugs.II Always exercise.

75

III Take balance diet.


379.

Which of the following does not use the concept of density?

A Hot air balloon.B Submarine.C Raft.D Syringe.

380.

Durian can be smelt distance away. This is an application of

A evaporation.B Brownian motion.C diffusion of gases.D density.

381.

Which of the following explains how submarine sinks or floats on the sea?

A By using the force of gravity.B By filling and removing air from the ballast tank.C By filling and removing sea water from the ballast tank.D By stopping its engines.

382.

How does hot air balloon alight?

A By doing nothing.B By emptying the air in the balloon.C By heating the air in the balloon.D By lowering its air temperature in the balloon.

383.

Solids, liquids and gases have different densities. Which of the following applications does not make use of this principle?

A Transporting logs along river.B Building boat and ship.C Building railway tracks and bridges.D Constructing a row of shop lots.

384.

In some countries, rafts are used to carry goods and people on river. This is because

A raft is lighter than water.B raft is less dense than water.C raft is made of bamboo.D raft is denser than water.

76

385.

Telephone cables are installed sagging between supporting poles. This is because

A on cold day, it allows expansion of the cables.B on rainy day, it allows expansion of the cables.C on cold day, it allows contraction of the cables.D on hot day, it allows contraction of the cables.

386.

Which of the following does not use the applications of expansion and contraction?

A Fire alarm.B Thermostat.C Thermometer.D Hot air balloon.

387.

On railway tracks, gaps are provided between rail joints. This is

A to prevent rail from contracting on cold days.B to prevent rail from expanding on rainy days.C to prevent rail from expanding on cold days.D to prevent the rail from expanding on hot days.

388.

Whether an object can sink or float depends on its

A density.B shape.C mass.D volume.

389.

Which of the following use the principle of expansion and contraction?

I Railway track.II Telephone cables.III Fire alarm.


390.

Which of the following are the benefits of density in our daily life?

I Petroleum gas can be stored in cylinders.II Making cooking utensils.III Air can be pumped into tyre.


77

391.

Which of the following use the concept of density?

I Hot air balloon.II Raft.III Boat.


392.

Allow expansionAllow contractionPrevent damaging structuresBased on the above information, which of the following used the above principles?

I Sags between supporting poles.II Gaps between rail joints.III Gaps between concrete slabs.


393.

Which of the following cannot be done if there is no principle of density?

I Transporting logs by river.II Building bridges.III Transporting good on road.


394.

If earth's resources are not maintained, the following will happen except

A the extinction of plants.B the pollution of air.C the erosion of soil.D the worsening of global warming.

395.

Living things contribute the following to sustain life on earth except

A fossil fuels.B source for food.C source for clothes.D oxygen.

78

396.

The following ways are to maintain the earth resources except

A recycling.B preservation.C conservation.D precaution.

397.

Which of the following activities does not pollute the water source?

A Throwing sewage and waste products into rivers.B Excessive usage of fertilizers.C Have more forest reserves.D Dumping industrial chemical waste into rivers.

398.

The following statements about recycling is true except

A cleaner environment.B paper recycling reduces logging activities.C save cost and balance up the nature.D prevent illegal hunting of protected animals.

399.

Which of the following resources are not renewable?

I Coal.II Petroleum.III Water.


400.

Choose the correct methods to maintain the Earth's resources.

I Preservation.II Recycling.III Conservation.


401.

Which of the following is the importance to maintain the Earth's resources?

I To prevent extinction of animals and plants.II To ensure water and air are always clean.III To maintain the nature balance.

79


402.

Green plants are important to the living things on earth because green plants …

I produce nitrogen gas for human and animals.II reduce the content of carbon dioxide in the air.III can be used to make furniture.


403.

Which of the following statements about recycling is true?

I It ensures that resources are not wasted.II It helps to save costs.III It reduces cutting down of trees.


404.

Which of the following statements about element is not true?

A Element is material that contains only one type of atom.B Elements can be divided in to 2 groups which is metal and non-metal.C Elements are made up of atoms.D All metals and non-metals are elements.

405.

Material X· High boiling point· Conduct electricity and heat· Ductile and can be forgedWhich of the following materials has the characteristics of material X?

A Oxygen.B Carbon.C Sulphur.D Aluminium.

406.

Matter is classified as an element, compound and mixture. Which of the following are the correct examples for these three forms?

Element Compound MixtureA Sulphur Water AirB Hydrogen Hydrochloric Mercury

80

acidC Copper Nitrogen BloodD Carbon Soil Water

407.

Which of the following statements about the characteristics of compound and mixture is not true?

Compound MixtureA is formed

chemically.is formed physically.

B New material formed.

No new material formed.

C Can be separated only by chemical methods.

Can be separated by physical methods.

D No heat change Heat change happens

408.

Which of the following groups contains only elements?

A Nitrogen, soil, copper.B Steel, oxygen, sulphur.C Mercury, hydrogen, iodine.D Alcohol, water, iron.

409.

Determine the classification of matter P before heated and after heated.

Before AfterA Compound MixtureB Compound CompoundC Mixture CompoundD Mixture Mixture

410.

The above diagram shows the arrangement of atoms for material X, Y and Z. Which of the following is matched correctly with X, Y and Z?

X Y ZA Compound Mixture ElementB Mixture Compound ElementC Element Mixture CompoundD Element Compound Mixture

411.

Which of the following element-function is mismatched?

81

Element FunctionA Copper Electrical wireB Oxygen Respiration gasC Mercury ThermometerD Nitrogen Medicine

412.

According to the diagram above, which of the following is the correct examples for P, Q and R?

P Q RA Air Chlorine AluminiumB Carbon

dioxideHydrogen Bronze

C Water Iron NitrogenD Blood Platinum Water

413.

Which of the following does not form a new compound?

A Sand is mixed with iron powder.B A small piece of potassium is put into water.C Iron powder is heated.D Magnesium stripe is burned in air.

414.

Which of the following is not the characteristic of mercury?

A High boiling point.B Conducts electricity.C Has shiny surface.D High density.

415.

Which of the following processes is used to separate elements from a compound?

A Condensation.B Electrolysis.C Distillation.D Filtration.

416.

Which of the following is an element?

A Soil.B Carbon dioxide.C Oxygen.D Water.

417.

Sodium chloride is a compound and not a mixture because their atoms

82

A have different sizes.B have same density.C cannot be separated physically.D do not combined in an exact ratio.

418. A plastic cube has 2 cm sides and its mass is 8 g . Which of the following liquids allows the cube to float on it?

Liquid Volume(cm3) Mass (g)A P 50 40B Q 50 60C R 60 50D S 60 60

419.

Based on the above diagram, P and Q are

P QA Sulphur IodineB Carbon dioxide MagnesiumC Calcium carbonate ChlorineD Nitrogen Sulphur

420.

Which of the following compounds and its elements is matched incorrectly?

Compound Elements

A Ammonia Nitrogen and hydrogen

B Water Hydrogen and oxygen

C Sodium chloride Sodium and chloride

D Calcium carbonate Calcium and carbonate

421.

Which of the following pairs is true about the number of atoms in sulphur molecule and nitrogen molecule?

Sulphur molecule Nitrogen moleculeA 4 2B 8 4C 2 8D 8 2

422.

A molecule of copper sulphate consists of

A 1 atom copper, 1 atom sulphur and 2 atom oxygen.B 1 atom copper, 1 atom sulphur and 4 atom oxygen.

83

C 2 atom nitrogen and 2 atom hydrogen.D 1 atom copper and 1 atom sulphate.

423.

The substance in a thermometer is

A mercury.B cuprum.C platinum.D carbon.

424.

Based on the above diagram, which of the following represents P, Q and R?

P Q RA Metallic

elementCompound Non

metallic element

B Metallic element

Compound Metallic element

C Metallic element

Mixture Non metallic element

D Non metallic element

Mixture Non metallic element

425.

Which of the following is most malleable?

A Iron.B Wood.C Copper.D Mercury.

426.

· W : Filter· X : Evaporate· Y : Go through magnet· Z : Dissolve in waterThe above shows the steps to separate a mixture of sand, iron fillings and common salt. Which of the following is the correct sequence?

A Z, Y, W, XB Z, Y, X, WC Y, Z, W, XD Y, W, Z, X

84

427.

The above diagram shows the process of electrolysing copper chloride solution. Which of the following statements is false about the experiment?

A Gas chlorine will be released from the positive carbon rod.B Copper will deposit on the negative carbon rod.C Copper chloride in the solution will break up into copper and chloride by heating.D The solution will become colourless.

428.

X + Y → Calcium hydroxide + Hydrogen

The above equation shows calcium hydroxide is formed. X and Y are

X YA Calcium HydroxideB Water CalciumC Hydrogen WaterD Calcium Hydrogen

429.

X + Y → Z

The above equation shows Z is formed when X is burnt in air. X, Y and Z are

X Y ZA Magnesium Oxide Magnesium

oxideB Oxygen Magnesium Magnesium

oxideC Copper Sulphur Copper

sulphideD Calcium Water Calcium

hydroxide

430.

Which of the following differences of metal and non metal is matched incorrectly?

Metal Non metalA Shiny Not shinyB Good conductor Bad conductorC Not ductile DuctileD Malleable Not malleable

431.

Based on the above diagram, which of the following are examples of P, Q and R?

85

P Q RA Nitrogen Hydrogen PetrolB Copper Mercury OilC Mercury Hydrogen WaterD Iron Mercury Alcohol

432.

The above diagram shows a process to separate a substance from its solution. The method used is

A filtration.B evaporation.C distillation.D crystallization.

433.

Which of the following methods to separate mixture is not correct?

Mixture MethodA Water and salt EvaporationB Water and sand FiltrationC Water and alcohol DistillationD Water and oil Sieving

434.

The above equation shows the combustion of coal with oxygen. What is P and Q?

I Carbon dioxide.II Water.III Carbon.


435.

Which of the following metals and its applications is not true?

Metal ApplicationI Aluminium Electrical wireII Iron Kitchen utensilIII Mercury Thermometer


86

D I only

436.

Which of the following is not the properties of metal?

I Ductile.II Good insulator.III Brittle.


437.

Which of the following molecules consists of eight atoms?

I Sulphur.II Copper sulphate.III Nitrogen.


438.

The elements of water are

I salt.II oxygen.III hydrogen.


439.

Which of the following materials is a compound?

I Copper (II) sulphate.II Water.III Soil.


440.

87

The above diagram shows an incomplete circuit. Which of the following metals can be used to join P and Q to turn on the light bulb?

I Iron.II Zinc.III Aluminium.


441.

Which of the following statements is wrong?

I Water molecule consists of 1 oxygen atom and 1 hydrogen atom.II Carbon is a metal because it can conduct electricity.III Nitrogen is used to make fertilizer.


442.

Which of the following alloy-use pairs is/are true?

Alloy UseI Steel Fork, knifeII Brass KeyIII Bronze Coins


443.

Which of the following statements about compound is not true?

I It is prepared physically.II Formed by combining two or more elements chemically.III It cannot be separated through physical methods.


444.

Which of the following about the uses of non-metal is true?

I Graphite is used to make pencils.II Chlorine is used to kill germs in water pipes.III Hydrogen is used for mountain hiking.

88


445.

According to the above diagram, which of the following about X, Y and Z is true?

X Y ZI Carbon

dioxideCarbon Plumbum

II Oxygen Iron AluminiumIII Nitrogen Mercury Zinc


446.

The below table shows the separation methods for mixtures. Which of the following pair is/are matched correctly?

Method MixtureI Evaporation Sugar solutionII Filtration Water and sandIII Separation funnel Petrol and water


447.

A mixture of iron powder and sulphur can be separated by ….

I stirring the mixture using a magnet.II heating the mixture at high temperature.III filtering the mixture after water is added.


89

448.

The above diagram show the method of separating mixtures of

I petrol.II water.III salt.


449.

The above diagram show the method of separating mixtures of

I water.II salt.III alcohol.


450.

The above diagram shows the method of separating mixtures of

I salt.II water.III sand.


90

D I only

451.

What conclusion can be made from the electrolysis of copper chloride solution?

I It is not a mixture.II It needs chemical method and energy to separate its components.III It conducts electricity.


452.

The below table shows the comparison between mixture and compound. Which of the following pairs is/are matched correctly?

Mixture CompoundI Prepared by

physical meansPrepared by chemical reaction

II No energy is set free

Energy is set free

III Separated by physical means

Separated by chemical means


453.

Which of the following mixtures and its components it matched incorrectly?

Mixture ComponentI Steel Carbon, ironII Air Hydrogen, oxygenIII Coins Copper, nickel, tin


454.

The above diagram shows the component of gas in air. P, Q, R and S is represented by

P Q R SA Carbon Rare Oxygen Nitrogen

91

dioxide gasesB Rare

gasesCarbon dioxide

Nitrogen Oxygen

C Carbon dioxide

Oxygen Nitrogen Carbon dioxide

D Rare gases

Nitrogen Carbon dioxide

Oxygen

455.

The above diagram shows the oxygen cycle on the earth. P, Q and R represents

P Q RA Decompositi

onPhotosynthesis

Respiration

B Respiration Photosynthesis

Decomposition

C Decomposition

Respiration Photosynthesis

D Respiration Decomposition

Photosynthesis

456.

Which of the following shows the correct percentage of the composition of air?

Carbon dioxide

Oxygen Nitrogen Rare gases

A 0.03% 78% 21% 0.9%B 0.9% 21% 78% 0.03%C 0.03% 21% 78% 0.9%D 0.3% 21% 78% 0.09%

457.

Based on the above diagram, it shows the proportion of air used up in the gas jar. What inference can be made from this experiment?

A 20% of air is oxygen.B 20% of air is carbon dioxide.C 20% of air is nitrogen.D 20% of air is rare gases.

92

458.

Based on the above diagram, which of the following is true about the experiment?

A Air contains dust.B Water vapour is present in air.C 20% of air is oxygen.D Air contains foreign particle.

459.

Apart from nitrogen, oxygen, carbon dioxide, air also contains the following except

A rare gases.B water vapour.C hydrogen.D dust and microorganisms.

460.

Which of the following is not rare gas?

A Helium.B Xenon.C Argon.D Vapour.

461.

Which of the following processes does not need oxygen?

A Burning.B Respiration.C Rusting.D Photosynthesis.

462.

The above diagram shows an experiment to ascertain

A the presence of dust in the air.B the presence of water vapour in the air.C the presence of microorganisms in the air.D the presence of oxygen in the air.

463.

We feel pain in our ears when we go up on a high mountain. This is due to the

A cooler weather. B strong wind.C lower air pressure.

93

D thinner air.

464.

Based on the above diagram, what can you infer from this experiment?

I 20% of the air is oxygen.II

Water rises 5

1

of the height of the gas jar.III

1

5

of the air is oxygen.


465.

What is the supporting arguments that air is a mixture and not a compound?

I Gases can be mixed easily without involving absorption and release of energy.II Gases in air can be separated easily.III Gases in air are in fixed amounts.


466.

The below table shows the components and its percentage in air. Which of the following pair is/are correct?

Components in air PercentageI Carbon dioxide 0.03%II Rare gases 0.9%III Hydrogen 78%


467.

The above diagram shows the composition of air. P, Q and R could be

94

I oxygen.II hydrogen.III nitrogen.


468.

Based on the above diagram, what can you infer from this experiment?

I Air contains water vapour.II Air contains dust.III Air contains microorganisms.


469.

Which of the following statements about air is mixture is true?

I The gases in air can be easily separated during burning, decay, respiration and rusting.II The gases in air are not present in fixed amounts.III Air can be easily obtained by mixing the correct gases together in the right proportions.


470.

Which of the following rare gases exist in air?

I Radon.II Neon.III Xenon.


471.

Which of the following statements concerning air pressure is true?

I Air pressure acts to all directions.95

II Higher altitude has lower air pressure.III Air pressure is the weight of air.


472.

Which of the following statements about air is not true?

I Air is a compound.II Air has pressure.III Air has mass.


473.

Carbon dioxide is released during

I respiration.II burning.III photosynthesis.


474.

The above experiment is to test the presence of

A oxygen.B hydrogen.C carbon dioxide.D nitrogen.

475.

Which of the following statements about oxygen is incorrect?

A Oxygen is neutral.B Oxygen helps combustion.C Oxygen reacts with lime water and turns the solution into milky. D Oxygen has no colour, taste or smell.

96

476.

Which of the following statements about the application of carbon dioxide is wrong?

A It is used to put out fire.B It is used to make plastic.C It is used to make dry ice as a coolant.D It is used in making washing soda.

477.

Which of the noble gas is used to fill the light bulb and makes the filament last longer?

A Xenon.B Helium.C Argon.D Neon.

478.

The concentration of carbon dioxide in the atmosphere is higher at night compare to day time. This is because

A plants do not perform photosynthesis at night.B carbon dioxide is converted into dry ice.C plants perform photosynthesis process by using moonlight.D of the lower atmosphere temperature.

479.

The above experiment is to test that

A oxygen does not dissolve in natrium hydroxide solution.B carbon dioxide does not dissolve in natrium hydroxide solution.C oxygen dissolves a little in water.D carbon dioxide is very soluble in water.

480.

Based on the above diagram, what inference can be made from this experiment?

A Oxygen is acidic.B Carbon dioxide makes water cloudy.C The red colour of the indicator turns into yellow with the presence of oxygen.D Carbon dioxide is not acidic.

481.

Which of the following statements about nitrogen is false?

A Nitrogen is slightly less dense than air.B Nitrogen is a neutral gas.C Nitrogen is a very inactive gas.D Nitrogen does not react with lime water but soluble in sodium hydroxide solution.

97

482.

Which of the following gas is used to produce green light for advertisement purposes?

A Krypton.B Argon.C Xenon.D Neon.

483.

In the experiment shown above, liquid X is used to test the solubility of carbon dioxide. Liquid X is

A distilled water.B lime water.C sodium hydroxide solution.D bicarbonate indicator.

484.

In the experiment shown above, liquid Y is used to test whether oxygen is a neutral gas. Liquid Y is

A hydrogen indicator.B bicarbonate indicator.C pure water.D lime water.

485.

Based on the above diagram, the following is true about this experiment except

A oxygen helps in combustion.B carbon dioxide does not help in combustion.C the wooden splinter burned brightly in the present of oxygen.D the wooden splinter extinguished due to excessive amount of oxygen.

486.

The following explains why helium is used in meteorological balloons except

A it does not help in combustion.B it is the second lightest gas.C it is the most inactive gas.D it does not burn.

487.

Which of the following pairs about the properties of oxygen is incorrect?

Oxygen CharacteristicA Odourless OdourB Neutral gas Test with moist

98

litmus paperC No changes Test with lime waterD Denser than air Density

488.

The above experiment is to test the acidity of oxygen. What can you observed from this experiment?

A The moist litmus paper changed to red colour.B The moist litmus paper changed to blue colour.C The moist litmus paper changed to pink colour.D The colour of moist litmus paper does not change.

489.

The above experiment is to determine the reaction of carbon dioxide with lime water. Which of the following is true?

I The lime water becomes chalky.II Carbon dioxide does not react with lime water.III Carbon dioxide is very soluble in lime water.


490.

Gases such as petroleum gas, oxygen, nitrogen and helium are kept in gas cylinder in liquid form because …

I it is cheaper.II more gas can be kept.III can be transferred easily.


491.

Oxygen gas can be prepared in the lab. Which of the following chemical reagents can be used to prepare oxygen?

I Potassium chloride.II Hydrogen peroxide.III Potassium permanganate.


99

D I only

492.

The above experiment is used to test the solubility of carbon dioxide in water. What can be observed from this experiment?

I The water level will rise a little in the test tube.II Carbon dioxide is very soluble in water.III The water level will rise very high in the test tube.


493.

Nitrogen

I is colourless.II is a neutral gas.III does not react with lime water and dissolve in sodium hydroxide solution.


494.

The above experiment is to test the reaction of carbon dioxide with moist litmus paper. Which of the following is false?

I The colour of the moist litmus paper did not change.II Carbon dioxide is an acidic gas.III The moist litmus paper turns to red colour.


495.

The above experiment is used to test the acidity of carbon dioxide. Y could be

I hydrogen carbonate indicator.II bicarbonate indicator.

100

III natrium hydroxide solution.


496.

The above experiment is used to test the reaction of oxygen with a lighted splint. Which of the following is false?

I The glowing wooden splinter was put out.II Oxygen helps in combustion.III The glowing wooden splinter in flame.


497.

Carbon dioxide can be used

I as dry ice.II in fire extinguishers.III as preservative.


498.

Among the following, which gas is used in the application of camera lamps and as anaesthetic during surgery?

I Xenon.II Neon.III Argon.


499.

Gas Y can dissolve in sodium hydroxide solution. Gas Y is ...

I carbon dioxide.II oxygen.III hydrogen.

101


500.

Why carbon dioxide can be used to put out fire?

I Does not help in combustion.II Denser than the air.III Can break off the oxygen supply.


501.

The below table shows the test result of some gases. Which of the pair is/are true?

Gas TestI Carbon dioxide Turn lime water

into milky colour.II Oxygen Flare up the lighting

stick.III Nitrogen Put off the lighting

stick.


502.

Increase of carbon dioxide concentration in the atmosphere will cause …

I the increase of temperature.II a longer summer.III less sunlight reaches to the Earth.


503.

Fire can be controlled by breaking off the supply of

I water.II oxygen.III fuel.


102

504.

Explosive materials have to be kept in a container filled with nitrogen gas because nitrogen

I does not help combustion.II does not help explosion.III it is colourless.


505.

Based on the above diagram, which of the following statements is false?

A When carbon dioxide is added into the boiling tube, the bicarbonate indicator changes from red to yellow.

B When carbon dioxide is removed from the boiling tube, the bicarbonate indicator changes from red to purple.

C The bicarbonate indicator remains purple when the air is neutral.D Cockroach and germinating seeds release carbon dioxide during respiration.

506.

X + oxygen → Water + Y + Z

The above shows the respiration process of living organisms. What does X, Y and Z represent?

X Y ZA Energy Food Carbon

dioxideB Glucose Energy Carbon

dioxideC Carbon

dioxideNitrogen Energy

D Food Glucose Energy

507.

The above shows an experiment to compare common air and exhaled air. Which of the following is true?

A Both burning candles extinguished at the same time.B Both candles burned for the same period of time.

103

C Candle B burned longer than candle A.D Candle A burned longer than candle B.

508.

Two burning candles are put into two gas containers where one is filled with normal air and the other one is filled with exhaled air. After a while, …

A candle in container A will put off first.B candle in container B will put off firstC both candle will put off at the same timeD candle in container B will continue burning while candle in container A will put off.

509.

Which of the following differences between photosynthesis and respiration is not true?

Photosynthesis RespirationA Happens when

there is sunlight.Happens the whole day.

B Carbon dioxide and water are used.

Carbon dioxide and water are produced.

C Chemical energy is used.

Chemical energy is produced and saved.

D Oxygen is released.

Oxygen is used.

510.

Orange juice can be sucked from a bottle by using a straw is because the air pressure in the straw is

A lower than the juice pressure.B lower than the air pressure.C higher than the air pressure.D same as the air pressure.

511.

What is the change of air component exhaled by a person after an exercise?

Oxygen Carbon dioxide

Nitrogen Steam

A Increase Decrease No change

Decrease

B Decrease Decrease Increase IncreaseC Decrease Increase No

changeIncrease

D Increase Increase Decrease Decrease

512.

The upper surface of a leaf is greener than the lower surface because the upper surface has more

A air pores.104

B cuticle.C stoma.D chlorophyll.

513.

The above equation represents a process that takes place in human body. The process is

A digestion.B excretion.C respiration.D reproduction.

514.

The diagram above shows the structure of a leaf. X, Y and Z represents

X Y ZA Parenchyma Xylem CuticleB Parenchyma Vein StomaC Epidermis Xylem CuticleD Epidermis Phloem Stoma

515.

1. Leaves are boiled in boiling water.2. Leaves are heated in alcohol.3. Leaves are soaked in hot water and

then washed with cold water.4. A few drops of iodine are dropped

onto the leaves.

The above shows the steps for an experiment. What can be observed after iodine is dropped onto the leaves?

A No changes can be observed.B The leaves will turn into dark blue.C Veins of the leaves will turn into red. D The leaves will turn into green.

516.

The above diagram shows a pesticide spray. When the plunger is pulled from position Q to P, which of the area label with W, X, Y and Z has the lowest air pressure?

A WB XC YD Z

105

517.

P - BronchusQ - TracheaR - BronchioleS - AlveolusAccording to the above, arrange the flow of exhaled air from a human body?

A S R P QB S P R QC Q P R SD Q R P S

518.

A balloon that is filled with air is put into a sealed gas container. When the air is exhaled slowly from the container, the balloon will

A become smaller.B become bigger.C expand and then become smaller again.D not have any changes.

519.

The above experiment is to test whether living things release carbon dioxide during respiration. After several hours, the hydrogen carbonate indicator in the boiling tubes of X, Y and Z will turn into colour

X Y ZA Red Red YellowB Yellow Yellow RedC Yellow Red YellowD Red Yellow Purple

520.

Based on the above diagram, which of the following statements for the above experiment is false?

A The carbon dioxide set free is absorbed by the sodium hydroxide in the boiling tubes.106

B All living things use oxygen during respiration.C All living things release carbon dioxide during respiration.D The indicator will move toward the direction of boiling tube A and B.

521.

Which of the following pairs of inhaled air and exhaled air is matched incorrectly?

Inhaled air Exhaled airA Less water vapour More water vapourB More oxygen Less oxygenC More warm Less warmD Less carbon

dioxideMore carbon

dioxide

522.

The above diagram shows an experiment to compare the carbon dioxide content of inhaled and exhaled air. Air is breathed in and out of tubes A and B. What can be observed from the lime water in test tube A and test tube B?

A The lime water of test tube A and test tube B remained unchanged.B The lime water of test tube A and test tube B turned chalky at the same time.C The lime water in test tube A became chalky faster than the lime water in test tube B.D The lime water in test tube B became chalky faster than the lime water in test tube A.

523.

Choose the suitable compositions of air for human to breathe in.

Oxygen Carbon dioxideA 4% 16%B 16% 4%C 21% 0.03%D 0.03% 21%

524.

Based on the above experiment, which of the following observations is incorrect?

A In tube X, carbon dioxide is added to the air. B In tube X, the indicator turns yellow.C In tube Y, oxygen is added to the air.

107

D In tube Y, the indicator does not change colour.

525.

X + Oxygen Energy + Y + Water

The above equation shows a chemical reaction. X and Y could be

I food.II glucose.III carbon dioxide.


526.

The alveoli are suitable for the exchange of gases. This is because

I they are well covered by blood capillaries.II they have very thin and moist walls.III they have large surface area.


527.

Which of the following percentage of oxygen and carbon dioxide in exhaled air is correct?

I Oxygen - 21%II Carbon dioxide - 4%III Oxygen - 16%


528.

Based on the above diagram, what will happen at the end of this experiment?

I Hydrogen carbonate indicator in tube X will change to yellow colour.II Hydrogen carbonate indicator in tube Y will change to yellow colour.III Hydrogen carbonate indicator in tube Z will be in red colour.

108


529.

Based on the above diagram, which of the following is true about this experiment?

I The lime water in boiling tube B turns chalky faster than the lime water in boiling tube A.II The conclusion of this experiment is exhaled air contains more carbon dioxide than inhaled air.III The lime water of boiling tube A turns chalky faster than the lime water in boiling tube B.


530.

In the human respiratory system, when air passes through the nose, the air is

I surrounded by many blood capillaries.II filtered by fine hair.III warmed to body temperature.


531.

The above experiment shows three boiling tubes A, B and C. Boiling tube A and B contains of a cockroach and germinating seeds. What can be observed from the experiment?

I The indicator of boiling tube A moved inwards towards the boiling tube.II The indicator of boiling tube B moved inwards towards the boiling tube.III The indicator of boiling tube C moved away from the boiling tube.

A I, II, IIIB I, II

109

C II, IIID I only

532.

What factors help the gas exchange between blood capillaries and alveolus can be carried out effectively?

I Alveoli has many blood capillaries. II Alveoli has very thin walls.III Alveoli has very moist walls.


533.

Which of the following pairs is/are matched correctly?

Gas Inhaled air Exhaled airI Oxygen 21% 16%II Nitrogen 78% 78%III Heat More Less


534.

Which of the following takes place in the above experiment?

I The cockroach releases carbon dioxide.II The indicator moves outwards away from the tube due to the pressure from carbon dioxide.III The sodium hydroxide absorbs oxygen.


535.

110

The above experiment shows three test tubes P, Q and R. Test tube P and Q consists of a cockroach and germinating seeds respectively. Which of the test tube shows chalky lime water?

I PII QIII R


536.

Based on the above diagram, what can be observed from this experiment?

I Candle A extinguished earlier than candle B.II Exhaled air has less oxygen than inhaled air.III Candle B will burn longer than candle A.


537.

Nose X Bronchi Y Alveoli

The above shows the process where air is inhaled into human lungs. Which of the following represents X and Y?

I Capillary.II Trachea.III Bronchioles.


538.

Which of the following is incorrect about exhaled air?

I Less heat than inhaled air.II Less oxygen than inhaled air.III More water vapour than inhaled air.


111

539.

The below table shows the differences of respiration and photosynthesis. Which of the following pairs is/are correct?

Respiration PhotosynthesisI Releases carbon

dioxide.Absorbs carbon dioxide.

II Absorbs oxygen. Releases oxygen.III For human. For plant and

animal.


540.

The following conditions are required for combustion except

A fuel.B heat.C oxygen.D hydrogen.

541.

Which of the following statements about combustion is incorrect?

A Fuel gas is used at home to cook food.B During burning, heat and light are produced.C When kerosene is burnt, carbon dioxide and water vapour is produced.D Fuel cannot be lighted up if its temperature is too low.

542.

Which of the following properties is required for combustion?

A Carbon dioxide.B Oxygen.C Water vapour.D Heat and carbon dioxide.

543.

In order for the above two processes to take place, what is X, Y and W?

X Y WA Oxygen Water FuelB Water Fuel OxygenC Water Oxygen FuelD Fuel Water Oxygen

112

544.

After a few days, which test tube's iron nails will be corroded?

A PB QC RD P and R

545.

Which of the following methods cannot prevent iron from corrosion?

A Wipe with grease.B Paint with alcohol.C Wrap with plastic.D Paint with paint.

546. X+Oxygen b⃗urnsY +Heat+Light

The above equation shows the products of X when X is burned in the air. Which of the following represents X and Y?

X YA Magnesium oxide MagnesiumB Magnesium Magnesium oxideC Carbon WaterD Carbon dioxide Carbon

547. X+Oxygen b⃗urnsY +Z+Heat+Light

The above equation shows the products of X (such as diesel) when X is burned in the air. Which of the following represents X, Y and Z?

X Y ZA Hydrogen Hydrogen

hydroxideWater

B Carbon Carbon dioxide

Water

C Hydrocarbon Water CarbonD Hydrocarbon Carbon

dioxideWater

548.

The above experiment is to determine the end products of charcoal combustion. Which of the following inference is not true at the end of this experiment?

113

A The wall of the gas jar is warm.B The lime water turns chalky.C Carbon burns in oxygen to produce heat, light and hydrocarbon.D The charcoal burned brightly in the gas jar.

549.

Which of the following methods to extinguish a fire is incorrect?

Method Source of fireA Water, sand Solid fuelB Powder fire

extinguisher, waterLiquid fuel

C Powder fire extinguisher, sand

Electric current

D Foam fire extinguisher

Gaseous fire

550. X+Oxygen b⃗urnY +Water+Heat+Light

The above equation shows the process of combustion in air. Which of the following represents X and Y?

X YA Kerosene Carbon B Charcoal Carbon dioxideC Gasoline CarbonD Sugar Carbon dioxide

551.

Which of the following is not true about the importance of combustion?

A Petrol and diesel are burnt to enable motor vehicles to move.B Fuel gas is used at home to cook food.C Kerosene is burnt in factory to get light energy.D Fuel hydrogen is burnt in oxygen to launch space ships.

552.

Which of the following applications do not depend on fuel combustion?

A Space ship.B Motor vehicle.C Bullet train.D Rocket.

553.

Based on the above diagram, what can you observe at the end of this experiment?

114

A Both candle burns for the same length of period.B Candle Y will extinguish faster than candle X.C Candle X will burn longer than candle Y.D Candle Y will burn longer than candle X.

554.

Which of the following will be produced when gasoline is burnt?

A Carbon dioxide and nitrogen.B Oxygen and carbon.C Hydrocarbon and oxygen.D Carbon dioxide and water.

555.

The above diagram shows an experiment about combustion. Which of the following explains the above experiment?

I Combustion uses 20% of the air.II Candle Y burns longer because there is more oxygen in the gas jar.III Candle X extinguish faster because there is no oxygen in the gas jar.


556. X + Oxygen burns

Y + Light + HeatThe above equation shows the combustion of X in the air. X and Y could be

I carbon.II carbon dioxide.III magnesium.


557.

Which of the following statements about combustion is false?

I Combustion takes place in all matters.II Carbon dioxide is released when diesel is burnt.III Heat and light are the products of combustion.

A I, II, IIIB I, II

115

C II, IIID I only

558.

X is needed for the above processes to take place. What is X?

I Oxygen.II Water.III Carbon.


559.

Choose the following methods that can prevent iron from corrosion.

I Wrap with plastic.II Layer it with paint.III Wipe with grease.


560.

Which of the following produces water during combustion?

I Diesel.II Gasoline.III Candle.


561.

Which of the following sources of fuel is/are matched correctly with its purpose?

Source of fuel PurposeI Oil lamp To get light energy.II Fuel gas To cook food.III Fuel hydrogen For motor vehicle.


116

562.

What is produced when kerosene is burnt in the air?

I Carbon dioxide.II Water.III Heat.


563.

Which of the following is set free when gasoline is burnt?

I Carbon dioxide.II Light.III Water vapour.


564.

The above diagram is to determine the products of combustion of kerosene. Which of the following recorded test observations is/are correctly matched with its inferences?

Observation InferenceI Lime water is

chalky.Carbon dioxide is produced.

II Blue cobalt chloride paper turns pink.

Water is produced.

III Walls of gas jar are warm.

Heat energy is set free


565.

The below table shows sources of fire and its methods to put it out. Which of the following pairs is/are matched correctly?

Source of fire MethodI Butane Powder

117

extinguisherII Electric current Carbon dioxide

extinguisherIII Alcohol Sand and water


566.

X + Oxygen Water + Carbon dioxide

The above equation shows the combustion of X in air. X can be

I diesel.II kerosene.III sugar.


567.

Which of the following is needed for combustion?

I Oxygen.II Heat.III Fuel.


568.

What are the bad effects of rusting iron to human and the environment?

I Causes tetanus.II Destroys human property.III Weakens the building structure.


569.

118

The above diagram shows the combustion of kerosene. A few tests are conducted. Which of the following is/are matched correctly with its observation?

Test ObservationI Cobalt chloride

paperTurns pink.

II Lime water Turns chalky.III Litmus paper Turns red.


570.

Which of the following methods cannot be used to control air pollution?

A Stop constructing industrial factories next to residential area.B Not to use too much of pesticide.C Use unleaded petrol.D Encourage people to practise open burning of rubbish.

571.

Which of the following statements about pollutants polluting its environment is incorrect?

A CFC corrodes ozone layer.B Dust causes asthma and cough.C Sulphur dioxide causes acid rain.D Carbon monoxide causes difficulties in breathing.

572.

The following is caused by air pollution except

A damages of lungs.B damages of brain cells.C defects in unborn babies.D floods in town areas.

573.

Which of the following diseases is not caused by breathing in polluted air?

A Lung cancer.B Bronchitis.C Heart disease.D Stomach cancer.

574.

Which of the following air pollutants and its consequences is matched incorrectly?

Air pollutants ConsequencesA Carbon dioxide Global warmingB Pesticides PoisoningC Chlorofluorocarbon Damage of ozone

layerD Nitrogen oxide Damages of

nervous system119

575.

Lead can cause

A the Earth temperature to increase.B damages to nervous system.C damages to brain cells.D damages to ozone layer.

576.

The following is the effects of too much dust in air, except

A causes health problem such as lung cancers.B pollutes environment.C reduces photosynthesis process .D causes acid rain.

577.

The reduction of photosynthesis process in green plants is cause by the increase of

A carbon monoxide.B smoke and soot.C sulfur dioxide.D carbon dioxide.

578.

· Imbalance of carbon cycle and oxygen cycle· Increase of Earth temperature· Global warmingBased on the above information, this phenomenon is known as

A haze.B ultraviolet radiation.C green house effect.D acid rain.

579.

Which of the following air pollutants and its sources is matched incorrectly?

Air pollutant SourcesA Chlorofluorocarbon Spray from

aerosolB Carbon dioxide Burning of

rubbishC Sulfur dioxide Refrigerator and

air conditionerD Lead Excessive use of

insecticide in agriculture activities

580.

The green house effect will cause the following except

I Earth temperature increases.II thickening of ozone layer.

120

III acid rain.


581.

Which of the following is caused by the harmful ultraviolet rays?

I Skin cancer.II Lowering of body defence system.III Eyes become blind.


582.

Radioactive wastes released into environment can cause

I infertility.II cancer.III vomiting.


583.

Corrodes housesCorrodes the lining of the respiratoryBased on the above information, which of the following cause it happens?

I Carbon dioxide.II Sulfur dioxide.III Nitrogen oxide.


584.

Which of the following causes air pollution?

I Increase burning of fossil fuels.II Increase usage of vehicles.III Increase of forest fires.


121

D I only

585.

Which of the following methods can control air pollution?

I Reduce the use of chlorofluorocarbon.II Avoid open burning of rubbish.III Encourage farmers to use insecticide.


586.

Sulfur dioxide can cause

I acid rain.II corrosion to houses.III poisoning.


587.

Air will be polluted when gas is released

I from motor vehicle's exhaust.II by photosynthesis process.III by respiration process.


588.

Below table shows air pollutants and its effects. Which of the following pairs is/are matched correctly?

Air pollutant EffectI Carbon

monoxideDamages brain and cause death

II Smoke and soot Reduce photosynthesis

III Carbon dioxide Global warming


589.

Which of the following disease is caused by the increase of dust and soot in air?

122

I Lung cancer.II Bronchitis.III Asthma.


590.

The following will happen when the air is not clean except

A more haze and more car accidents.B the Earth temperature increases and air become hotter.C more health problems faced by human.D more people go for outing.

591.

We should adopt the following habit to keep our air clean except

A ban open burning of rubbish.B plant more trees. C be more indifferent and self centered.D do not smoke in public places.

592.

The following ways are encouraged to keep air clean except

A ban on open burning of rubbish.B encourage motor vehicle to use catalytic converters.C encourage forest fires.D run campaigns to discourage cigarette smoking.

593.

Without clean air, the following will happen to human beings except

I the chance of getting asthma is higher.II human suffers from breathing difficulties.III human suffers from cataract and skin cancer.


594.

Which of the following habits we should adopt to keep the air clean?

I Understanding.II Cooperative.III Responsible.

A I, II, IIIB I, II

123

C II, IIID I only

595.

Which of the following ways is to keep the air clean?

I Run campaigns to explain the importance of clean air to human.II Ban smoking in public places.III Plant more trees in the house compound.


596.

Which of the following has potential energy?

A A car moving on the road.B A diver standing on the diving board.C A lighted bulb.D A spinning ball.

597.

Which of the following statements about energy is not true?

A Energy cannot be created or destroyed.B Energy is the capacity of a physical system to do work.C Mechanical energy is the combination of kinetic energy and potential energy.D The standard unit of energy is volt (V).

598.

The above diagram shows a free swinging pendulum. Its highest points are P and R. What energies does the pendulum have at position P, Q and R?

P Q RA Potential

energyKinetic energy

Potential energy

B Potential energy

Potential energy

Potential energy

C Kinetic energy

Potential energy

Kinetic energy

D Kinetic energy

Kinetic energy

Potential energy

599.

When two atoms are combined to form a new larger atom, what energy does this fusion have?

124

A Kinetic energy.B Mechanical energy.C Thermal energy.D Nuclear energy.

600.

Which of the following statements concerning the characteristics of thermal energy is not true?

A Thermal energy can be found in hot objects.B Thermal energy flows from a hotter body to a colder body.C Living things can obtain thermal energy from the oxidation of food.D Thermal energy can cause the lost of temperature of an object.

601.

The above diagram shows a light bulb. If the light bulb is turned on, what is the conversion of energy?

A Chemical energy Electric energy + Thermal energyB Chemical energy Light energyC Electric energy Thermal energy + Light energyD Kinetic energy Light energy

602.

Electric energy Kinetic energy + Thermal energy + Sound energy

Which of the following converts energy as shown above?

A Telephone.B Oil lamp.C Hair drier.D Dynamo.

603.

When an aeroplane is flying towards the sky, what energy is increasing?

A Chemical energy.B Potential energy.C Solar energy.D Thermal energy.

604.

The above diagram shows a ball rolling down freely from the highest point, passing P, Q, R and S. At which point the ball has the greatest potential energy?

A PB QC R

125

D S

605.

The above diagram shows a spring, bouncing up and down. What is its conversion of energy?

A Chemical energy Kinetic energyB Kinetic energy Thermal energy + Sound energyC Potential energy Kinetic energyD Chemical energy Potential energy

606.

Which of the following appliance is correctly matched to its conversion of energy?

Appliance Conversion of energy

A Television Chemical energy Light energy + Thermal energy

B Fan Electric energy Kinetic energy

C Iron Electric energy Sound energy + Thermal energy

D Oil lamp Chemical energy Thermal energy + Kinetic energy

607.

The following can be converted from light energy from the Sun except

A chemical energy.B solar energy.C nuclear energy.D kinetic energy.

608.

What is the main conversion of energy for the model in the above diagram?

A Electric energy Thermal energy Kinetic energy Sound energyB Chemical energy Electric energy Kinetic energy Sound energyC Thermal energy Electric energy Kinetic energy Sound energyD Chemical energy Thermal energy Electric energy Sound energy

609.

Chemical energy changes to mechanical energy when

126

A a light bulb is turned on.B a balloon is released into the sky.C a bread is toasted.D a car is moving.

610.

In an experiment, a student throws a ball from first floor to the ground. Which of the following energy changes take place?

Kinetic energy Potential energyA Increases IncreasesB Decreases DecreasesC Increases DecreasesD Decreases Increases

611.

The following are the sources of sound energy except

A thunder.B music instrument.C television.D car.

612.

Which of the following has kinetic energy?

A Lighting.B A flying aeroplane.C A lighted electric bulb.D A battery.

613.

The above diagram shows a ball rolling down a slope. As the ball rolls down, which of the following energy will increase?

A Kinetic energy.B Chemical energy.C Potential energy.D Mechanical energy.

614.

P + Q = Solar energy

The above shows that solar energy consists of P and Q. Which of the following represents P and Q?

P QA Nuclear energy Mechanical energyB Heat energy Nuclear energyC Light energy Chemical energyD Heat energy Light energy

127

615.

The following figure shows some converters with its energy conversions. Which of the following pair is incorrectly matched ?

Converter Energy conversionA Solar cell Light energy →

Electrical energyB Electric kettle Electric energy →

Heat energyC Bicycle dynamo Kinetic energy →

Chemical energyD Moving car Chemical energy →

Kinetic energy

616.

Based on the above diagram, what forms of energy are produced?

A Potential energy → Chemical energy → Kinetic energy → Sound energyB Chemical energy → Potential energy → Kinetic energy → Sound energyC Potential energy → Kinetic energy → SoundD Chemical energy → Kinetic energy → Sound

617.

The above diagram shows the hand moves to wind up the coil of a toy car. The following forms of energy are produced except

A kinetic energy.B potential energy.C mechanical energy.D chemical energy.

618.

A policeman uses his gun and fires a bullet in the air, which of the following form of energy is not involved?

A Nuclear energy.B Heat energy.C Kinetic energy.D Sound energy.

619.

Sound energy → Kinetic energy → Electrical energy → Kinetic energy → Sound energy

Based on the above energy conversion, which of the following is the converter?

A Hair dryer.B Telephone.

128

C Television.D Radio.

620.

The above information shows how a nuclear power station works. Which of the following represents X and Y?

X YA Electrical energy Heat energyB Heat energy Electrical energyC Nuclear energy Heat energyD Heat energy Nuclear energy

621.

The above diagram shows the release of nuclear energy from an uranium source. The process is called

A nuclear fission.B nuclear fusion.C nuclear energy.D solar energy.

622.

The above diagram shows sources of energy. Which of the following can be X, Y and Z?

X Y ZA Hydro Nuclear ChemicalB Lighting Thunder WindC Water Light WindD Geothermal Biomass Waves

623.

Sodium hydroxide dissolves in water and the water becomes warm. What energy change takes place?

A Heat energy → Light energyB Chemical energy → Heat energyC Electrical → HeatD Chemical energy → Light energy

129

624.

Based on the above diagram, which of the following shows the changes of energy?

A Kinetic energy → Heat energy → Sound energyB Kinetic energy → Sound energy → Heat energyC Chemical energy → Kinetic energy → Sound energyD Potential energy → Heat energy → Light energy

625.

Based on the above diagram, which of the following shows the changes of energy?

A Chemical energy → Heat energy → Sound energyB Kinetic energy → Heat energy → Light energyC Heat energy → Kinetic energy → Sound energyD Potential energy → Chemical energy → Light energy

626.

Which of the following statements concerning biomass energy is false?

A Biomass energy is obtained from decomposing plant materials.B Biomass energy is obtained from decomposing animal materials.C Biomass energy is obtained from the heat released from the Earth's interior.D Biomass energy is obtained by burning animal materials.

627.

The following are the usages of wind as sources of energy except

A turning windmills to grind corn.B turning turbines and dynamos to produce electrical energy.C moving sailing ships.D providing extra energy to move cars.

628.

In a hydroelectric power station, water stored in a dam has

A chemical energy.B light energy.C potential energy.D electrical energy.

629.

130

When the wood in the above diagram is pulled down and let go, it will move up and down. What form of energy is involved?

A Potential energy.B Mechanical energy.C Heat energy.D Kinetic energy.

630.

P - Kinetic energy Q - Electrical energyR - Heat energyS - Chemical energyThe above information shows the forms of energy involved in a power station. Which of the following is the correct sequence?

A P, Q, R, SB S, R, P, QC P, S, R, QD Q, P, R, S

631.

· Energy is produced by vibration· Cannot travel through vacuum· Travel at the speed of 300 m/sBased on the above information, which of the following form of energy has all the above characteristics?

A Light energy.B Chemical energy.C Sound energy.D Nuclear energy.

632.

· Energy which supplies to solar cells· Travel at a speed of 300 000 km/s· Use in photosynthesis process Which of the following form of energy has all the characteristics described above?

A Heat energy.B Sound energy.C Light energy.D Solar energy.

633.

The following sources of energy are directly and indirectly from the sun, except

A energy in fossil fuels.B energy in waves.C energy in plants.D energy in hydroelectric.

634.

Converter Energy conversion

P Electrical energy → Heat energy

Q Light energy → Electrical

131

energyR Chemical energy →

Electrical energy →Light energy

Based on the above information, which of the following represents converter P, Q and R?

P Q RA Solar cell Radio BatteryB Electric

kettleSolar cell Torch light

C Bread toaster

Dynamo Solar cell

D Battery Spinning fan Motor

635.

The following are the sources of biomass energy except

A sugar cane juice.B rubbish.C coir.D alcohol.

636.

Which of the following is not fossil fuel?

A Plutonium.B Petroleum.C Coal.D Natural gas.

637.

The above diagram shows a water pump. What energy change takes place?

A Kinetic energy → Electrical energy → Kinetic energy → Potential energyB Potential energy → Kinetic energy → Electrical energy → Kinetic energyC Chemical energy → Kinetic energy → Electrical energy → Potential energyD Chemical energy → Electrical energy → Kinetic energy → Potential energy

638.

The following activities involve energy change from potential energy to kinetic energy except

A a spinning fan.B a swinging pendulum.C water flowing out from a dam.D coconut falling from a tree.

132

639.

Which of the following has the greatest kinetic energy?

A Water in a dam.B A moving bullet train.C An orbiting satellite.D A flying aeroplane.

640.

Potential energy is stored in an object because of its

A speed.B position.C mass.D length.

641.

The above diagram shows a lighted bulb in a circuit. The energy change is

A Chemical energy → Electrical energy → Heat energy → Light energyB Chemical energy → Electrical energy → Light energy + Heat energyC Electrical energy → Heat energy → Light energyD Electrical energy → Light energy

642.

The above diagram shows a ball rolling down from a slope. Which of the following statement is false?

A Potential energy is maximum at position X.B Kinetic energy increases at position Y.C Potential energy increases at position Y.D Kinetic energy is minimum at position Z.

643.

'Work' has different meaning in science. Which of the following is not a work?

A Muhammad takes his book from his bag and places it on his table.B Kim Seng is walking up the stairs.C Ali is going to switch on the light.D A group of students are pushing a motorcar.

644.

Which of the following is false concerning the usage of light energy?

A It is used to display films in the cinema.B It is used for photosynthesis process.C It supplies energy to solar cells.

133

D It is used to dry wet clothes.

645.

The following statements concerning chemical energy are true, except

A chemical energy can be used to produce electrical energy.B human body energy originates from the chemical energy in food.C chemical energy can change to heat, light and sound energy.D one of the examples of chemical energy is the rotating wheels of a vehicle.

646.

Geothermal energy is the energy obtained from deep in the Earth. Which of the following energy is obtained by geothermal?

I Heat energy.II Nuclear energy.III Solar energy.


647.

Solar power

I is free.II is clean.III originates from sun.


648.

Based on the above diagram, it shows that the ball is rolling down a slope. Which of the following explain this experiment?

I At position X, the potential energy is at maximum.II At position Y, the kinetic energy is increasing.III At position Z, the kinetic energy is zero.


134

649.

The above diagram shows a swinging pendulum. Which of the following is true about this swinging pendulum?

I The ball has maximum potential energy at position X.II The ball has maximum kinetic energy at position Y.III The ball has maximum potential energy at position Z.


650.

Nuclear energy is obtained by splitting the atoms of

I uranium.II plutonium.III titanium.


651.

Which of the following types of energy are not involved in the above diagram?

I Chemical energy.II Electrical energy.III Light energy.


652.

Which of the following energy conversion matched to its energy converter is incorrect?

I Solar cell : Electrical energy Light energyII Dynamo : Kinetic energy Electrical energyIII Bread toaster : Electrical energy Heat energy

135


653.

Which of the following energy involved in nuclear power station?

I Chemical energy.II Heat energy.III Kinetic energy.


654.

Which of the following energy is not involved in the above diagram?

I Chemical energy.II Kinetic energy.III Electrical energy.


655.

The types of energy involved in the activity shown above are

I heat energy.II light energy.III kinetic energy.


656.

Which energy is involved when releasing a stretched rubber band?

I Kinetic energy.

136

II Chemical energy.III Heat energy.


657.

The above diagram shows a light bulb. Which of the following types of energy are involved?

I Chemical energy.II Electrical energy.III Heat energy.


658.

Based on the above diagram, which of the following statements is/are true?

I Potential energy - When played, guitar strings are stretchedII Sound energy - Sound of the guitarIII Kinetic energy - When played, the guitar strings vibrate


659.

The following types of energy are involved in the above diagram, except

I chemical energy.II potential energy.III kinetic energy.


137

660.

Which of the following types of energy are involved when a boy shoots a stone from his catapult?

I Chemical energy.II Kinetic energy.III Sound energy.


661.

Calcium dissolves in water and the water becomes warm. Which of the following energy involved in this process?

I Chemical energy.II Heat energy.III Light energy.


662.

The word 'work' has a different meaning in science. Which of the following examples explain this?

I A student use all his energy to push against the wall.II A student picks up a box on the floor and puts it on the table.III A monkey from a tree throws a coconut to the ground.


663.

Which of the following processes need light energy?

I To draw power from a solar cell.II Photosynthesis process.III Recharge batteries.


664.

The above diagram shows both of the hands are rubbing. Which of the following energy involved in this process?

138

I Potential energy.II Heat energy.III Kinetic energy.


665.

Some countries use tides to turn turbines and dynamos to produce electrical energy. Tides flow in and out from the shore possess

I electrical energy.II kinetic energy.III potential energy.


666.

Which of the following has kinetic energy?

I A boy standing in the field.II A swinging pendulum.III A fish swimming in the lake.


667.

The above diagram shows a ball rolling down from point P to point S. Which of the following statements is true?

I The ball has the highest kinetic energy at point S.II The ball has the highest potential energy at point P.III Sound energy is produced at point Q.


668.

Biomass energy can be produced from the decay of …

I dead plants.

139

II dead animal.III plastic.


669.

Among the following energy converters, which of them transfer electric energy to kinetic energy?

I Dynamo.II Electric fan.III Electronic clock.


670.

Below shows energy converters and its energy conversion. Which of the pairs is/are matched incorrectly?

Energy converter

Energy conversion

I Television Electric energy Light energy + Thermal energy

II Dynamo Electric energy Kinetic energy

III Fan Electric energy Kinetic energy


671.

Energy obtained from the sun is …

I light energy.II chemical energy.III kinetic energy.


672.

Which of the following activities does not transfer potential energy into kinetic energy?

I Throwing a ball into the sky.II A coconut drops from its tree.III A swinging pendulum.

140


673.

Electrical energy Heat energy

Based on the above energy conversion, which of the following could be the energy converters?

I Electric kettle.II Bread toaster.III Lighted candle.


674.

· Energy is produced by vibration· Cannot travel through vacuum· Energy at a speed of 300 m/sBased on the above information, which of the following sources of energy fulfill the characteristics?

I Thunder.II Musical instrument.III Television.


675.

Which of the following energy is not involved in the above diagram?

I Chemical energy.II Kinetic energy.III Potential energy.


676.

Water stored in a hydroelectric power station and water that flows out from it has

I kinetic energy.

141

II potential energy.III sound energy.


677.

Wind which possesses kinetic energy can be used to

I move cars.II move sailing ships.III turn windmills.


678.

Nuclear energy is released in the process called

I solar cell.II nuclear fission.III nuclear fusion.


679.

Which of the following is not a source of energy?

I Electricity.II Waves.III Wind.


680.

Which of the following changes the potential energy of an object?

I Condition.II Position.III Weight.


142

681.

According to the diagram above, which of the following is an example for X?

A Petroleum.B Wind.C Hydro.D Solar.

682.

Energy resource that does not pollute environment and not dangerous to the health of living things is

A petroleum.B radioactive material.C sun.D natural gas.

683.

The following are the advantages of hydroelectric power, except …

A it does not produce polluting waste.B it is a renewable energy resource.C it has a low consumption cost.D it balances the ecosystem.

684.

Which of the following energy sources and its disadvantages is matched incorrectly?

Energy source DisadvantageA Wind Depend on its speedB Hydro High cost of

constructionC Nuclear Risk of accidentsD Biomass Produce acidic gases

685.

Which of the following energy sources and its advantages is matched incorrectly?

Energy source AdvantageA Waves Unlimited sourceB Solar No pollutionC Tides Low cost of

constructionD Fossil fuels Easy to burn

686.

Which of the following energy source pollutes the environment and is dangerous to the health of living things?

A Wind.B Geothermal.C Solar.D Waves.

143

687.

According to the diagram above, which of the following is an example for X?

A Nuclear.B Biomass.C Natural gas.D Coal.

688.

The following are the disadvantages of geothermal, except

A it requires high construction cost.B it is difficult to find suitable area and the energy is limited.C it is harmful.D it has lots of supply.

689.

The following are the ways to save energy at home, except

A switch off the light when not in use.B use the LRT train instead of using your own car.C switch off the television when you're not watching.D instead of 100W bulb, use a 40W bulb.

690.

Which of the following ways to save energy in industry is false?

A Ensure all machines works efficiently.B Switch off the main power supply to the factory when not in use.C Recycle materials such as newspaper, plastic and aluminium.D Always choose methods which use less energy.

691.

In some countries, wind energy is used to move yacht. Wind energy originates from the

A Sun.B air.C Earth.D waves.

692.

The following statements are true concerning renewable sources of energy, except

A renewable energy source are always exist.B examples of renewable energy sources are wind, waves and biomass.C renewable energy source cannot be depleted.D renewable energy source are environment friendly and do not cause any pollution.

693.

144

Based on the above table, which cannot be depleted?

A W, X, Y and Z.B Y and Z.C X and Z .D W and Y.

694.

Which of the following disadvantages is false concerning fossil fuels?

I It releases a lot of energy.II It causes pollution.III It produces acidic gases.


695.

Based on the above diagram, which of the following represents X?

I Solar energy.II Biomass energy.III Geothermal energy.


696.

According to the above, which of the following represents X?

I Petroleum.II Coal.III Natural gas.


697.

Among the following are disadvantages of waves energy, except

I plentiful of supply.II no pollution.III environment friendly.

145


698.

Among the following are disadvantages of geothermal, except

I plenty of supply.II high construction cost.III limited area.


699.

All the following are disadvantages of tides energy, except

I unlimited source.II no pollution.III suitable areas are limited.


700.

All the following are advantages of wind energy, except

I unlimited source.II insufficient supply of electrical energyIII dependent on wind speed.


701.

What is the disadvantage of nuclear energy?

I It will pollute the environment.II Its waste material is radioactive.III Human safety is not guaranteed.


702.

The following advantages about hydro energy is true, except

146

I It causes destruction of habitats.II No pollution.III Unlimited supply.


703.

Which of the following advantages is true about solar energy?

I Depends on weather.II No pollution.III Unlimited supply.


704.

Which of the following actions is wasting energy?

I Car-pool or using public transport to working place.II Iron one shirt everyday with an electrical iron.III Turn on the high power light when sleeping.


705.

The above diagram shows the table of energy sources. Which of the following will be depleting?

I W and Y.II X.III Z .


706.

Among the following are the benefits of natural gas, except

I the source does not deplete.II it produces a lot of heat.

147

III it burns almost completely.


707.

The following disadvantages about biomass energy is false, except

I it removes waste organic matter.II it requires large amount of biomass.III it requires high construction cost.


708.

Heat can flow from a place to another if there is a difference of ….. between these two places.

A densityB pressureC volumeD temperature

709.

Which of the following statements about heat is true?

A It is measured in the unit of degree Celsius (°C ) .B If the movement of particles in a body increases, heat will increase.C It is a form of energy that causes an object to become hot.D Heat can be measured with a thermometer.

710.

The following statements about heat is correct except

A heat is measured in units called joules (J).B heat is a form of energy.C heat is transferred from a hot area to a cold area.D sun is the only source for heat.

711.

The below figure shows the comparison between heat and temperature. Which of the following pair is correctly matched?

Heat TemperatureA Measured in

degree CelsiusMeasured in joule

B Does not depend on the size of object

Depends on the size of object

C An object becomes hotter when heat is added.

The temperature of an object increases when heat is

148

added.D Transferred from

cold place to hot place

Transferred from hot place to cold place

712.

Which of the following uses of heat and its explanations is matched incorrectly?

Use ExplanationA For melting Heat is used to melt iron

for casting.B For

sterilizingHeat is used for sterilizing containers in food factory.

C For making substances

Heat is required in making glass.

D For moulding Heat is to heat plastic for reshaping.

713.

Beaker W X Y ZVolume of water (cm3)

120 75 120 85

Temperature(°C ) 95 95 55 55

The above table shows the result of an experiment. Which of the beaker has the most heat?

A WB XC YD Z

714.

Beaker P Q R S

Temperature(°C ) 70 70 70 70

Volume of water (cm3)

650 450 300 150

Based on the above table, arrange beaker P, Q, R and S according to their heat content in increasing order?

A S, Q, R, PB P, R, Q, SC S, R, Q, PD P, Q, R, S

715.

The following produce heat except

A switching on an electric kettle to boil water.B switching on an electric bulb.C switching on an electric fan.D struck a match stick on the match box.

716.

Choose the correct units in measuring temperature and heat in the school laboratory.

149

Temperature (°C ) Heat

A T HB K KJC ° C JD ° C kJ

717.

Choose the incorrect statement about heat.

A Heat can be transferred.B Heat does not need a medium to travel.C Heat can change the state of a matter.D Heat cannot be measured.

718.

Heat can travel through

A solid only.B vacuum only.C gas only.D solid, liquid, gas and vacuum.

719.

Heat can be produced in many ways from the following energy, except

A electrical energy.B solar energy.C kinetic energy.D mechanical energy.

720.

The amount of heat in an object depends on the following except

A weight.B temperature.C mass.D capacity.

721.

The following appliances do not use heat from solar energy, except

A refrigerator.B electric oven.C solar water heater.D electric fan.

722.

Temperature can be defined as …

A frequency of collision between heated atoms.B attracting force between heated atoms.C amount of energy in a heated material.D the measured amount of heat in a place or in the body.

150

723.

Which of the following will happen when heat is absorbed in our body?

I Change of temperature.II Change of capacity.III Change of mass.


724.

When an object is heated, the object will change in its

I shape.II temperature.III size.


725.

Heat will flow from hot area to cold area when there is difference in

I temperature.II pressure.III capacity.


726.

A thermometer is used to measure

I amount of heat of an object.II temperature of human body.III temperature of an object.


727.

Which of the following activities produce heat?

I Rubbing our hand together.II Burning rubbish.III High speed of aircraft.

151


728.

Which of the following about temperature is correct?

I Measured by thermometer.II It is the degree of hotness of an object.III Measured in the unit of degree Celsius.


729.

The following about heat is correct, except

I heat is transferred from cold place to hot place.II heat is a form of energy.III heat is measured in the unit of Joule(J).


730.

Heat can be produced by

I volcanic lava.II hot water spring.III burning fuel.


731.

The quantity of heat in an object depends on its

I material.II temperature.III mass.


732.

Heat can be transferred in

152

I vacuum.II liquid.III solid.


733.

Which of the following energy can be used to produce heat?

I Sound energy.II Nuclear energy.III Solar energy.


734.

Based on the above, which of the following is true?

I Total energy in beaker P and beaker Q are different.II Heat in beaker P is higher than heat in beaker Q.III Heat in beaker Q is higher than heat in beaker P.


735.

A piece of iron and a cup of water have same temperature but different heat energy. This is because both of them

I have different heat capacities.II are different materials.III have different volumes.


736.

Which of the following use heat as one of their source of energy?

I Generating electricity.II Preserving food.

153

III Sterilizing containers in clinics.


737.

Converted heat from solar energy can be used in

I hot water systems.II generating electrical energy.III preserving food.


738.

Which of the following about heat and temperature is true?

I Body temperature will decrease when heat is released.II When an object becomes hotter, its temperature will become higher.III Total heat of ml 05 , C80 water is equivalent to the total heat of ml 010 , C40 of water.


739.

Why the hand will feel cold when touching a steel-made table at room temperature?

A At room temperature, the table is cold.B Heat from body is absorbed by the steel-made table.C Steel is a weak heat conductor. D Heat from the steel-made table is absorbed by the hand.

740.

Four iron cubes P, Q, R and S is heated in a boiling water as shown above. Later, these iron cubes

are put into beaker W, X, Y and Z respectively, where each of them contains of 10 0 ml of water. The maximum temperatures in each of the beakers are measured. Arrange the beakers in ascending order, according to the temperature obtained in each of the beakers.

A W, X, Y, Z

154

B X, Y, W, ZC Y, Z, W, XD Z, Y, X, W

741.

What will happen if the iron rod is heated at point X?

A Nail P will drop first.B Nail Q will drop first.C Nail P and nail Q will drop at the same time.D Nail P, Q and R will drop and the same

time.

742.

Define conduction.

A Direct transfer of heat between environment and the body surface.B Transfer of heat from the movement of liquid or air near the body surface.C Loss of heat from the surface of a liquid.D Transfer of heat from the environment to the inner body.

743.

Which of the following materials is the best heat conductor?

A Iron.B Air.C Water.D Aluminium.

744.

Based on to the above diagram, it is observed that the ice did not melt even though the water at the top is boiled. Which of the following statements is not true?

A Very little heat flows downwards to the bottom of the tube.B The wire gauze prevents the heat from flowing to the bottom of the tube.C Water is a poor heat conductor.D Water at the bottom of the tube still maintain at its initial temperature.

745.

Which of the following statements about radiation is not true?

A Quick transfer of heat. B Heat is transferred by electromagnetic wave.C Can happen in vacuum.D Need a medium to transfer heat.

746.

Which of the following statement explains air is not a good heat conductor?

155

A Size of air particles is small.B Air particles are very far apart.C Air particles move at different speeds.D Air consists of various types of gases.

747.

What causes sea breeze and land breeze?

A The movement of sea wave.B Gravity force.C Conduction of air.D Convection of air.

748.

A candle is flared up as shown in the above diagram. Which of the holes would the cool air enter into the box from surrounding?

749.

In cold days, the diameter of the blood capillaries of the skin will constrict. This is to

A increase the speed of blood flow.B prevent injures to the blood capillaries.C prevent heat loss to the environment.D transfer heat into the environment.

750.

Arrange the following metals in order of heat conduction, starting with metal that conducts least.

A Glass, iron, aluminium, copper.B Iron, aluminium, glass, copper.C Copper, aluminium, iron, glass.D Aluminium, iron, copper, glass.

751.

Which of the following statements about convection is true?

A Transfer of heat by the movement of air or liquid past the surface of a body.B Loss of heat from the surface of a liquid that is losing some of its molecules as gas.C Direct transfer of heat between environment and the body surface.D Heat is transferred by electromagnetic wave.

752.

Arrange the following materials in ascending order, according to their ability to act as a heat insulator.

A Asbestos, Glass, Plastic, Wood.B Water, Plastic, Wood, Air.C Water, Glass, Wood, Cork.D Glass, Wood, Air, Cork.

753.

Heat is transferred in the following ways, except

156

A conduction.B convection.C evaporation.D radiation.

754.

Which of the following will happen when the iron rod is heated?

A Its length will increase.B Its length will decrease.C Its length will remain the same.D Its diameter decrease.

755.

Based on the above diagram, what can be observed if the metal is heated?

A The metal ball cannot pass through the ring.B The metal ball will pass through the ring.C The metal ball will stuck in the ring.D The metal ball will contract.

756.

The above shows a bimetallic strip which is to be heated. After 15 minutes, what can be observed?

A Iron expands more than copper.B Copper expands more than iron.C Both iron and copper remain straight.D Both iron and copper contracts.

757.

The above diagram shows a candle below chimney X. Which of the following statement about this experiment is incorrect?

A Heat in air is transferred upwards by convection.B On an off, the smoke rises and leaves through chimney Y. C The air in chimney X becomes less dense.D Denser air enters through chimney Y.

758.

The above shows radiation taking place. The following statements are true except157

A radiated heat is able to be absorbed.B radiated heat travels at the speed of light.C radiated heat is able to reflect.D radiated heat moves through gases.

759.

The above diagram shows four different rods of the same size and length. Also four thumbtacks are sticked to the rod with candle wax. Arrange the sequence of the thumb tacks falling off from the rods.

A Aluminium, iron, copper, glass.B Aluminium, copper, iron, glass.C Copper, aluminium, iron, glass.D Copper, iron, aluminium, glass.

760.

The above diagram shows two flasks filled with hot water of the same temperature. Which of the following statements is false about this experiment?

A After 30 minutes, the temperature in flask Y is higher than flask X.B After 15 minutes the temperature in both flasks remain the same.C Plastic is a good heat insulator.D Plastic preserves the heat from flowing out of the flask.

761.

The below figure shows the comparison of conduction and convection. Which of the following pair is incorrectly matched ?

Conduction ConvectionA Slow process. Fast process.B Cannot happen in

vacuumCannot happen in vacuum.

C Heat transferred from particles to particles.

Heat transferred by the movement of fluid particles.

D Occurs in liquid and gases only.

Occurs in solid, liquid and gases.

762.

158

Observe the above diagram and choose the correct statement.

A The air on the land is hotter than the air on the sea.B It is called sea breeze.C The air on the land has lower density.D The hot air on the sea rises and replaces by the cold air from the land.

763.

The following involves the concept of convection except

A air ventilation system.B land breeze.C electric radiator system.D car radiator system.

764.

Heat from the Sun travels to the Earth by

A convection.B radiation.C conduction.D expansion.

765.

The above diagram shows the ventilation system in a house. Which of the following statements about the diagram is false?

A Fresh and cold air enters the house through its doors and windows.B Ventilation helps to dispose carbon dioxide from the house.C Conduction is used in ventilating the house.D Warm air leaves the house through its top openings.

766.

The below figure shows the comparison of convection and radiation. Which of the following pair is matched correctly?

Convection RadiationA Occurs in air. Occurs in fluids.B Very fast process. Fast process.C Transferred from

hot area to cold area

Transferred without using any medium

D Can happen in vacuum

Cannot happen in vacuum

767.

The following are the examples of the usage of heat insulators in our daily life, except

A the holders of cooking utensils are made of insulator.B electric water heaters are made of insulator.

159

C igloos are made of blocks of hard snow act as heat insulator.D flask stoppers are made of insulator.

768.

The above experiment is conducted to study the effect of heat on liquids. Choose the incorrect conclusion from the following.

A Different liquids expand at different rate.B Benzene rises the highest followed by oil and water.C Heat flows in the water through convection.D When heated up, all liquids will expand.

769.

According to the above diagram, which of the following statements is true?

I The tack sticked to cuprum rod will drop first.II The tack sticked to glass rod will be the last to drop.III Aluminium is the better heat conductor compare to iron.


770.

Which of the following use the applications of heat insulators?

I Stoppers of flasks.II Covers of pots and pans.III Sawdust to cover ice.


771.

Based on the above diagram, which of the following statements is true about this experiment?

160

I When heat is applied at the iron rod, nail P will drop first.II Nail R will drop just after nail Q.III Heat travelled through the iron rod by conduction.


772.

Based on the above diagram, what conclusion can be made?

I Heat moves at the speed of light.II Heat can be absorbed and reflected.III Heat can travel through vacuum.


773.

Based on the above diagram, it shows that the ice did not melt even if the water at the top is boiled. Which of the following statements is true about this experiment?

I Water is a poor heat conductor.II The wire gauze prevents heat from flowing downwards.III Boiling tube is a poor heat conductor.


774.

What would Ah Meng do if he wants the flask to maintain the temperature of the hot water as long as he can?

I Paint the flask with silver paint.II Wrap the flask with feather or fur.III Keep in a dark place.

161


775.

Different material conducts heat at different rate. Which of the following shows the correct arrangement of the materials, starting with the best conductor?

I Mercury, tin, iron.II Glass, copper, silver.III Plastic, aluminium, lead.


776.

Below table shows the comparison of conduction and radiation. Which of the following pairs is/are matched incorrectly?

Conduction RadiationI No need

medium.Needs medium.

II Occurs in liquids and gases.

Occurs in solids, liquids and gases.

III Slow process. Fast process.


777.

An inflated balloon expands when brought near to an oven. This happens because the air particles in the balloon

I gain extra kinetic energy.II move more actively and further apart.III expand.


778.

The above diagram shows a bimetallic strip. Heat is applied on it for 15 minutes. Which of the following statements is true?

I When heated, iron expands.II Copper expands more than iron.III When heated, copper particles receive more energy than iron.

162


779.

Which of the following appliances use the principle of convection?

I Clinical thermometer.II Refrigerator.III Car radiator.


780.

The above diagram shows a natural phenomena. Which of the following statements is not true?

I The land is hotter than the sea.II This phenomenon is called sea breeze.III The air moves from the land to the sea.


781.

Below table shows the comparison between radiation and convection. Which of the following pairs is/are matched correctly?

Radiation ConvectionI Fast process. Fast process. II Can travel

through vacuum.Can travel through vacuum.

III Happens in air. Happens in fluids.


782.

A man sitting beside a fireplace will feel hot because

I he gets heat from the fire by radiation.II heat from fire flow through the air by conduction.III the wind blows the heat from the fire towards him.

A I, II, IIIB I, II

163

C II, IIID I only

783.

According to the diagram above, both flasks are filled with hot water of the same temperature. After 30 minutes, thermometer Y shows higher temperature compare to thermometer X. Which of the following statements is true?

I Fur traps air, which is a heat isolator.II Flask Y is a good heat isolator.III Thermometer X is less sensitive than thermometer Y.


784.

Pick the difference between radiation and convection.

I Radiation can travel through vacuum.II Radiation happens in fluids only.III Radiation needs a medium to travel.


785.

Convection is a process of transferring heat that happens in …

I liquid.II gas.III solid.


786.

Which of the following appliances use the principle of conduction?

I Wire gauze.II Soldering irons.III Cooking utensils.

A I, II, III164


787.

Which of the following activities use the principle of radiation?

I Scout sits around a camp fire to keep warm.II Heat travels to the Earth from the Sun.III The hot air on the surface of the sea rises to the top.


788.

Heat from the Sun cannot reach the Earth by

I radiation.II convection.III conduction.


789.

The vacuum space between two layers of glass walls in a thermos flask is to …

I prevent heat lost by conduction and convection.II prevent heat lost by radiation.III make the flask lighter.


790.

Choose the following statements regarding energy sources which is not true?

A We have to delay the depletion of non renewable energy.B Some energy source has limited supply.C Always look for alternative sources of energy.D energy cannot be created but can be destroyed.

791.

The following will happen if energy is not conserved except

A non renewable energy will be used up.B homes and offices will continue to be powered by electricity from existing power station.C natural gas will be depleted earlier than we expect..D future designed cars will not use petrol any more.

165

792.

Which of the following energy can be used to conserve energy sources?

A Solar energy.B Waves energy.C Nuclear energy.D Wind energy.

793.

The following are ways to manage energy sources properly except

A we must destroy more natural habitats to built more hydroelectric dams.B we must save energy whenever we can.C energy like uranium must be handled with great care.D we must keep improving the efficiency in using energy sources.

794.

Which of the following ways is not encouraged to reduce environmental pollution?

A Energy source like plutonium should be used with great care.B Develop better engines for vehicle. C Use more energy source like coal. D Use energy sources that do not pollute environment.

795.

Which of the following can be used to replace petroleum gas?

A Coal.B Natural gas.C Biogas methane.D Butane.

796.

We can avoid having wastage of energy source if

I we use more natural gas.II the efficiency of electrical equipment is improved.III we always look for alternative ways of sources energy like wind energy and solar energy.


797.

Human needs to preserve and conserve energy sources because

I non renewable energy will be depleted one day.II we can reduce environmental pollution.III we can avoid wastage and save energy.


166

798.

Which of the following are the importance of conserving energy sources?

I More power plants are going to be built.II Non renewable source will be depleted in one day.III Nuclear energy is going to be used up earlier than we expect.


799.

Which of the following explain why solar energy is a better source of energy?

I It is one of the alternative source of energy which can be depended when non-renewable energy source is finally used up.

II It can be obtained easily.III It is renewable.


800.

Among the following are the ways to manage energy sources properly, except

I we can build more hydroelectric dam by destroying more natural habitats.II It is encouraged to use more geothermal energy rather than biomass energy.III Fossil fuels like coal must be handled and used with care.


801.

Why railroad tracks have gaps between rails?

A Easy to be repaired if there is any damages.B A trend of design.C Prevent the tracks from over expand during hot days.D Prevent the tracks from over contract during winters.

802.

Which of the following statements about mercury thermometer is false?

A The mercury rises and expands in the capillary tube when it is hot.B The mercury falls in the capillary rube when it is cold.C The mercury remain unmoved on a rainy day.D The concept of expansion and contraction of matter is engaged.

803.

The following are true about thermostat in an electric iron, except

167

A the bimetallic strip returns to its original position when the electric iron cools down.B the bimetallic strip thermostat in an electric iron acts as a switch.C the temperature can be controlled by changing the gap between the bimetallic strip and the

contact point.D the brass on the bimetallic strip contracts when the electric iron is hot.

804.

The following appliances use thermostat, except

A refrigerator.B electric oven.C telephone.D air-conditioner.

805.

P - Electric current flows through the circuit.

Q - bimetallic strip becomes hot in the present of heat.

R - Electric bell sounds the alarm.S - Bimetallic strip bends and expands.The above shows the operation of an automatic fire alarm. Choose the correct operation sequence.

A Q, P, S, RB Q, S, P, RC S, Q, P, RD P, S, Q, R

806.

Which of the following does not engage the principle of expansion and contraction of matter in its application?

A Telephone cables.B Railway lines.C Thermo flask.D Steel bridges.

807.

The above diagram shows a steel bridge with one end fixed and the other end placed on rollers. What is the main purpose of the rollers?

A To save construction cost.B To reduce pressure on the bridge.C To allow the bridge to contract on cold days.D To allow the bridge to expand on rainy days.

168

808.

The above diagram shows a railway tracks. What is the purpose of the gap between the iron rails?

A To allow the rails to contract during hot days.B To allow room for expansion of the rail during hot weather.C To reduce friction.D To easily repair the railway tracks.

809.

Why electric cables are loosened between the supporting poles?

A To easily repair when supporting poles fall.B To allow electric current to flow easily.C To allow cables to sag on rainy day.D To allow cables to contract during cold weather.

810.

· Bimetallic coil is made of brass on its outer part· Bimetallic coil is made of invar on its inner part· Brass expands more than invar when temperature risesBased on the above information, which of the following appliances fulfill all the above characteristics?

A Mercury thermometer.B Bimetallic thermometer.C Electric oven.D Rivet.

811.

The following appliances make use of bimetallic strip, except

I television.II refrigerator.III electric kettle.


812.

Which of the following appliances apply the concept of expansion and contraction?

I Fire alarm.II Rivet.III Bimetallic thermometer.


169

813.

Gassy drinks like Coca-Cola is always not filled to the top of the bottle. This is to

I allow expansion.II cushion shocks during transportation.III save production cost.


814.

Which of the following involve the principle of expansion and contraction of matter?

I Building a concrete roads.II Building a steel bridges.III Building high building.


815.

Why steam pipes have expansion joints?

I To allow pipes to expand when carry stream.

II To allow pipes to contract without breaking it.III Easily can be repaired if broken.


816.

Why telephone wires are not fixed tightly between the supporting poles?

I To save cost on construction.II To allow the wires to sag on hot day.III To allow the wires to contract on cold day.


170

817.

Based on the above diagram, which of the following explain the rollers at the end of a steel bridge?

I To facilitate repairing works.II To allow the bridge to expand on hot days.III To allow the bridge to contract on cold days.


818.

Based on the above diagram, which of the following explain usage of the gap between the iron rails?

I To allow expansion during hot day.II To prevent the railway tracks from crooked.III To reduce the pressure on the railway tracks.


819.

Which of the following appliances make use of bimetallic strips?

I Electric kettle.II Electric iron.III Oven.


820.

The following statements are true about the expansion and contraction of matter, except

I solids expand more than liquids when heated.II gas expands the most compare to liquids when heated.III water expands and contracts according to the principle of expansion and contraction of matter.

A I, II, III

171


821.

The above diagram shows four different tins filled with hot water of the same volume and temperature. After 30 minutes, which tin has the lowest temperature?

822.

According to the experiment above, which of the following statements is not true?

A P loses more heat than Q.B Q is the better heat absorber and radiator.C Q can preserves its heat longer than P.D The characteristics of Q is used in making oil tanks.

823.

Which of the following statements is false?

A A shiny object radiates heat better than a dull object.B A white object reflects heat better than a black object.C A black object absorbs heat better than a white object.D All objects can absorb and reflect heat.

824.

· Reflects a little bit of heat· Absorbs a lot of heat· Radiates a lot of heatBased on the above information, which of the following surfaces fulfill the above characteristics?

A Colourful surfaces.B Black and dull surfaces.C Black and shiny surfaces.D White and shiny surfaces.

825.

How fast heat is radiated by an object depends on the following, except

A surface area of the object.B material of the object.C temperature of the object.D mass of the object.

826.

Why petrol tanks are painted with aluminium paint?

A To prevent petrol from burning.B To prevent absorption of heat.C To reflect heat.

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D To maintain the quality of the petrol.

827.

· Reflects a lot of heat· Absorbs a little bit of heat· Radiates a little bit of heatBased on the above information, which of the following surfaces fulfill the above characteristics?

A Colourful surfaces.B Gold colour surfaces.C White and dull surfaces.D White and shiny surfaces.

828.

The following involves the concept of absorption and radiation of heat in its application, except

A house wall is painted white.B surface of oil tanker is painted silver.C tea pot is made of aluminium.D back of refrigerator is painted silver.

829.

Why the pipes on the solar heater are black in colour?

A To reflect heat from the Sun.B To absorb heat more faster from the Sun.C To prevent the loss of heat.D To prevent leakage.

830.

The above diagram shows two conical flask at temperature 60 °C . After 15 minutes, what will be the temperature of thermometer X and Y?

X (0 °C ) Y(0 °C )A 60 60B 60 75C 55 65D 35 45

831.

The following statements are true about the above experiment, except

I Q is a better heat radiator.II P loses heat faster than Q.III The characteristic of P is applied in making the pipes of a solar heater.

173


832.

Which of the following pairs of dull and shiny surfaces are matched correctly?

Dull surface Shiny surfaceI Good heat

absorberGood heat reflector

II Good heat radiator

Weak heat absorber

III Weak heat reflector

Weak heat radiator


833.

Among the following are true, except

I Aluminium foils surfaces are bad reflectors of heat.II Black dull surfaces are bad radiators of heat.III White shiny surfaces are bad absorbers of heat.


834.

Why the iron helmets of fire men are shiny?

I To reflect heat.II To absorb less heat.III To radiate more heat.


835.

· Reflects a little bit of heat· Absorbs a lot of heat· Radiates a lot of heatWhich of the following surfaces have the above characteristics?

I Black colour surfaces.II Dull surfaces.III Many colour surfaces.

174


836.

In the Arctic, the Eskimos do not feel cold even though their igloos are made of ice. This is because

I ice is an insulator.II ice absorbs less heat.III ice is a weak radiator of heat.


837.

Heat given out by an object depends on

I the type of surface of the object.II the surface area of the object.III material of the object.


838.

Which of the following statements are true?

I Shiny object reflects heat better than dull object.II Dull object radiates heat better than shiny object.III Dull object absorbs heat better than shiny object


839.

Why are the walls of houses are painted white?

I To absorb less heat.II To keep the house cooler.III So the wall can last longer.


175

840.

· Reflects a lot of heat· Absorbs a little bit of heat· Radiates a little bit of heatWhich of the following surfaces meet the above characteristics?

I White colour surfaces.II Shiny surfaces.III Golden colour surfaces.


841.

The following improves air circulation except

A install exhaust fans.B install electric fans.C make ventilation holes.D install air conditioners.

842.

P - Electric kettleQ - Air conditionerR - TelevisionS - Electric radiatorWhich of the following depends on heat transfer to function effectively?

A P and Q.B P, Q and R.C P, Q and S.D P, Q, R and S.

843.

Which of the following will not happen if there is no heat transfer?

A Salt cannot be obtained from sea water.B Electric oven cannot function well.C Electric fan cannot function well.D Electric iron cannot function well.

844.

Which of the following depends on heat transfer to function effectively?

I Car radiator.II Coffee maker.III Refrigerator.


845.

Which of the following are the benefits of heat flow?

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I Enables hot air in a room o be transferred out.II Makes life more comfortable.III Evaporation of sea water.


846.

Which of the following will happen without heat transfer?

I Water cannot boils when heated.II Clothes cannot dry.III Human always feel cold.


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