summative assessment i (2011) lakdfyr ijh{kk&i … … · · 2016-09-12... which method of...

of 18

SUMMATIVE ASSESSMENT –I (2011)

Lakdfyr ijh{kk&I SCIENCE / foKku

Class – IX / & IX

Time allowed: 3 hours Maximum Marks: 90 fu/kkZfjr le; % 3 ?k.Vs vf/kdre vad % 90

General Instructions:

(i) The question paper comprises of two sections, A and B. You are to attempt both

the sections.

(ii) All questions are compulsory.

(iii) There is no overall choice. However, internal choice has been provided in all the

five questions of five marks category. Only one option in such questions is to be

attempted.

(iv) All questions of section A and all questions of section B are to be attempted

separately.

(v) Questions 1 to 3 in section A are one mark questions. These are to be answered in

one word or in one sentence.

(vi) Questions 4 to 7 in section A are two marks questions. These are to be answered

in about 30 words each.

(vii) Questions 8 to 19 in section A are three marks questions. These are to be

answered in about 50 words each.

(viii) Questions 20 to 24 in section A are five marks questions. These are to be

answered in about 70 words each.

(ix) Questions 25 to 42 in section B are multiple choice questions based on practical

skills. Each question is a one mark question. You are to select one most

appropriate response out of the four provided to you.

lkekU; funsZ”k %

(i) bl iz”u i= dks nks Hkkxksa, Hkkx v vkSj Hkkx c esa ckaVk x;k gSA vkidks nksuksa Hkkxksa ds iz”uksa ds mRrj

fy[kus gSaA

(ii) lHkh iz”u vfuok;Z gSaA

(iii) iwjs iz”u i= ij dksbZ p;u izkIr ugha gS ijUrq ikap&ikap vadks ds ikWap iz”uksa esa Hkhrjh p;u fn;k x;k

gSA bu iz”uksa esa vki dsoy ,d Hkhrjh p;u dks mRrj fy[kus ds fy, pqu ldrs gSaA

(iv) vkidks Hkkx v vkSj Hkkx c ds lHkh iz”uksa ds mRrj iF̀kd&i`Fkd fy[kus gksaxsA

(v) Hkkx v ds iz”u la[;k 1 ls 3 ds iz”u ,d&,d vad ds gSaaA buds mRrj ,d “kCn vFkok ,d okD; esa

nsaA

470036

of 18

(vi) Hkkx v ds iz”u la[;k 4 ls 7 ds iz”u nks&nks vadksa ds gSaA buds mRrj yxHkx 30&30 “kCnksa esa nsus gSaA

(vii) Hkkx v ds iz”u la[;k 8 ls 19 ds iz”u rhu&rhu vadksa ds gSaA buds mRrj yxHkx 50&50 “kCnksa esa nsus

gSaA

(viii) Hkkx v ds iz”u la[;k 20 ls 24 ds iz”u ikap&ikap vadksa ds gSaA buds mRrj yxHkx 70 “kCnksa esa nsus gSaA

(ix) Hkkx c ds iz”u la[;k 25 ls 42 ds iz”u iz;ksxkRed dkS”ky ij vk/kkfjr cgqfodYih iz”u gSaA izR;sd

iz”u ,d vad dk gSA fn, x;s pkj fodYiksa esa ls vkidks dsoy ,d lcls mi;qDr fodYi pquuk gSA

Section A

1. Study the given schematic diagram and predict which one of the change of states represented by

labels (a) to (f) are not possible for water.

(a) (f)

2. Name the force which arises between two surfaces in contact.

3. Who discovered cells in living organisms ? Give an example of a unicellular organism.

4. Define Crystallisation. Why is crystallisation technique considered better than simple 2

of 18

evaporation to purify solids ?

5. Write the relation between mass m and the weight W of a body. List any two difference between

the two.

m W

6. Mention any two functions of the endoplasmic reticulum.

7. (a) Identify the type of plant tissue given below. Where in the stem of a plant would

you find this tissue ?

(b) Label the parts marked ‘A’ and ‘B’.

(a)

(b) ‘A’ ‘B’

of 18

8. Give reasons for the following :

(a) A sponge is a solid but can be easily compressed.

(b) Clothes dry faster on a windy day.

(c) We can get the smell of a perfume several metres away from it.

(a)

(b)

(c)

9. Name the type of colloids in each in which dispersed phase and the dispersing medium are

respectively :

(a) liquid and gas.

(b) liquid and liquid.

(c) liquid and solid.

Give one example of each.

(a)

of 18

(b)

(c)

10. State three equations of motion. Which of them describes :

(i) velocity - time relation

(ii) position -time relation ?

(i)

(ii)

11. Two friends on roller skates are standing 5 m apart facing each other. One of them throws a

ball of 2 kg towards the other, who catches it ? How will this activity affect the position of the

two ? Explain.

5 m 2 kg

12. State the universal law of gravitation. Write the relationship to determine the gravitation force F,

between the earth of mass M and an object of mass m held on the surface of the earth. (Take

radius of the earth = R)

M m

F R

13. Two similar buses are moving with same velocity on a road. One of them is empty and the

other is loaded with passengers. Which of the two will be stopped by the application of less

force ? Explain.

of 18

14. An object is thrown vertically upwards and rises to a height of 20 m. Find (i) the velocity with

which the object was thrown upwards and (ii) the time taken by the object to reach the highest

point (g10ms2)

20 m (i)

(ii) (g10 ms2)

15. What are the three main functions of areolar tissues?

16. Draw a well labelled diagram of phloem tissue.

17. (a) What are chromosomes ? Write their chemical composition.

(b) What is the relationship between chromatin material and chromosomes ?

(a)

(b)

18. Name two exotic or foreign and two local breeds of cows selected for long lactation period. What

management practices are common in dairy and poultry farming (Give any two)

19. What are macro nutrients and micro nutrients? Identify the micronutrients from the following :

nitrogen, iron, manganese, magnesium.

From where do plants get carbon, oxygen and hydrogen ?

of 18

20.

(a) Calculate the amount of water required to prepare 500g of 2.5% solution of sugar.

(b) Why do colloids show Tyndall effect and not the true solutions.

(c) Name a method of separation used to separate two miscible liquids.

(a) 500 g 2.5%

(b)

(c)

OR

(a) 50g of sugar is dissolved in 350 mL of water. Calculate its mass percentage by

volume.

(b) Give any two characteristics of compounds.

(c) Which method of separation is used to separate two immiscible liquids.

(a) 50 350 mL /

(b)

(c)

21. Account for the following : 5

(a) For any physical state of a substance, the temperature remains constant during its

change

of state.

(b) Water kept in an earthen pot becomes cool in summer.

(c) We are able to sip hot tea from a saucer rather than from a cup.

(a)

(b)

of 18

(c)

OR (a) Differentiate between three states of matter on the basis of following properties.

(i) intermolecular forces. (ii) Arrangement of molecules.

(b) Liquids generally have lower density compared to solids. But you must have

observed that ice floats on water. Give reason.

(a)

(i) (ii)

(b)

22. State and verify law of conservation of momentum.

OR (a) State second law of motion. Give its mathematical expression.

(b) How will you define unit of force using this law ?

(c) Calculate the mass of a body. When a force of 525 N produce an acceleration of

3.5 m/s2.

(a)

(b)

(c) 525 N 3.5 m/s2

23.

On a 100 km track, a train travels the first 30 km at a uniform speed of 30 km h1. How

fast must the train travel the next 70 km so as to average 40 km h1 for the entire trip.

100 km 30 km 30 km h1

70 km 40 km h1

OR (a) Differentiate acceleration from velocity.

(b) Can a body have acceleration without change in magnitude of velocity ? Explain

of 18

with an example.

(c) A motor boat starting from rest on a lake accelerates in a straight line at a constant rate of

3 m/s2 for 8s. How far does the boat travel during this time ?

(a)

(b)

(c) 8 s 3 m/s2

24. Differentiate between capture fishing and culture fishery. Explain the advantage of

composite fish culture with example. State the problems faced on adopting

composite fish culture and also the solution found to solve it.

OR Explain the two ways of incorporating desirable characters in to crop varieties. Mention any two

such desirable characters to be seen in a variety for selection.

Section B

25. The true solution of alum in water appears :

(a) Colourless (b) Blue (c) Yellow (d) Green

(a) (b) (c) (d)

26. The substance which does not form suspension in water is :

(a) Common salt (b) Sand

(c) Soil (d) Chalk powder

of 18

(a) (b) (c) (d)

27. Which one of the following will result into the formation of compound of iron and sulpher ?

(A) Mixing of iron filings and sulphur powder at room temperature.

(B) Adding iron filing to molten sulphur

(C) Heating the mixture of iron filing and sulphur powder

(D) Addition of carbon disulphide to a mixture of iron filings and sulphur powder

(A)

(B)

(C)

(D)

28. The colour of Magnesium ribbon available in laboratory is :

(a) similar to rust (b) grey

(c) silvery white (d) golden yellow

(a) (b)

(c) (d)

29. Ram wants to find out the accurate boiling point of water, he should use :

(a) tap water (b) distilled water

(c) salt water (d) sugar solution

of 18

(a) (b)

(c) (d)

30. Which of the following is the correct method for finding the melting point of ice ?

(a) A (b) B (c) C (d) D

(a) (b) (c) (d)

31.

The adjoining diagram illustrates the method of separation of a mixture of sand

ammonium chloride and common salt. In this diagram the component 1 and 2 after

heating will respectively be :

of 18

(a) (Common salt sand) and ammonium chloride respectively

(b) Ammonium chloride and (common saltsand) respectively

(c) (ammonium chloridesand) and common salt respectively

(d) (ammonium chloridecommon salt) and sand respectively

1 2

(a)

of 18

(b)

(c)

(d)

32. Colour of compound of Iron and Sulphur is :

(a) Black (b) Green

(c) Yellow (d) None of the above

(a) (b)

(c) (d)

33. On burning magnesium ribbon in air we observe.

(a) bright white light

(b) bright red light

(c) orange flame

(d) no flame

(a)

(b)

(c)

(d)

34. Sublimation can be used to separate :

(a) volatile and non - volatile liquids.

(b) volatile and non - volatile solids.

(c) miscible and immiscible liquids.

(d) components of any type of mixture.

of 18

(a)

(b)

(c)

(d)

35. A student soaked 10 g raisins in 75 mL of distilled water in two beakers A and B. He maintained

beaker A at 20C and beaker B at 40C. After an hour, the percentage of water absorbed will be :

(a) Same in beaker A and B

(b) more in A than in B

(c) more in B than in A

(d) twice as much in B as in A

10 g 75 mL A B A 50C

B 100C 1

(a) A B (b) A B

(c) B A (d) B A

36. On observing a freshly prepared slide of onion peel under the microscope it was seen that

when the cells of one end were focused the cells of other end went out of focus and vice

versa. The most probable reason for this could be that :

(a) The peel was overstained

(b) The peel was not uniformly spread on the slide

(c) Uniform light was not coming through the diaphragm

(d) The magnification of eye piece was very low

(a)

(b)

(c)

of 18

(d)

37.

The four operations for testing the presence of starch in rice are given below.

(1) Put few grains of rice in a test tube

(2) Add few drops of iodine solution

(3) Add water to the test tube containing rice

(4) Boil the rice and filter the contents

The correct sequence of operations is :

(a) (1), (2), (3), (4) (b) (1), (3), (4), (2)

(c) (1), (3), (2), (4) (d) (1), (2), (4), (3)

(1)

(2)

(3)

(4)

(a) (1), (2), (3), (4) (b) (1), (3), (4), (2)

(c) (1), (3), (2), (4) (d) (1), (2), (4), (3)

38. Some Iodine solution by mistake spilled on a white handkerchief as well as on a 1

yellow coloured shirt. The stain on the handkerchief was yellowish brown while that on the

shirt was blue - black. It can be inferred that :

(a) the shirt had absorbed some detergent during washing.

(b) the shirt was starched after washing.

(c) the handkerchief was starched but not the shirt.

(d) the shirt was dyed with metanil yellow.

of 18

(a)

(b)

(c)

(d)

39. Which one of the following is the correct step, in the procedure for making a temporary

slide of human cheek cells ?

(a) Place the cheek cell scraping’s in a watch glass containing water.

(b) Place cheek cell scrapings in the centre of a clean slide.

(c) Dip the tooth pick containing cheek cell scrapings in the stain and then transfer to a clean slide.

(d) Obtain cheek cells directly in the slide using its edge to scrap the inside of the cheek.

(a)

(b)

(c)

(d)

40. The parts marked A and B in the diagram are :

(a) A — nucleus, B — Dendrite (b) A — dendrite, B — Axon

(c) A — axon, B — Dendrite (d) A — dendrite, B — Nucleus

of 18

A B

(a) A — B — (b) A — B —

(c) A — B — (d) A — B —

41.

A student was asked to identify the process which occurs when the raisins are soaked in water :

(a) Osmosis (b) Plasmolysis

(c) Endocytosis (d) Diffusion

(a) (b)

(c) (d)

42. Akriti was given a slide of parenchyma she concluded that parenchyma cells possess :

(a) central cytoplasm and peripheral vacuole

(b) central vacuole and peripheral cytoplasm

(c) thickened cell walls

(d) no cytoplasm

(a)

of 18

(b)

(c)

(d)

summative assessment i (2011) lakdfyr ijh{kk&i … … · · 2016-09-12... which method of...

Documents