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CONFIDENTIAL 55/2

55/2 NAME:ScienceForm 1Paper 2 FORM:August20111 ½ hours

SEKOLAH MENENGAH KAPIT NO.2

MID-SEMESTER 2 EXAMINATION 2011

[See overleaf55/2 CONFIDENTIAL

1 A

CONFIDENTIAL 55/2

SCIENCE

Form 1

Paper 2

One hour and thirty minutes

DO NOT OPEN THE QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO

1. This question paper consists of two sections: Section A and Section B.

2. Write your answer in the spaces provided in the question paper.

3. The diagrams in the question provided are not drawn to scale unless stated.

4. Marks allocated for each question or part question are shown in brackets.

5. The time suggested to complete Section A is 60 minutes and Section B is 30 minutes.

6. You may use a non-programmable scientific calculator.

7. Hand in your entire answer sheet at the end of the examination.

SectionQuestionnumber

Marksallocated

Marksobtained

A

1 5

2 5

3 7

4 8

5 9

6 6

B

7 8

8 12

Section A + Section B


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This question paper has 14 printed pages including front page

\

Section A[40 marks]

Answer all questions.

1. Diagram 1.1 shows how to measure the length of a pencil. Rajah 1.1 menunjukkan cara mengukur panjang pensil

(a) Mark ‘X’ in the box provided on Diagram 1.1 to show the correct position of the eye in taking the reading.Tandakan ‘ X ‘ dalam petak yang disediakan dalam Rajah 1.1 untuk menunjukkan kedudukan mata semasa mengambil bacaan.

[1 mark]

(b) What is the length of the pencil ? Berapakah panjang pensil itu ?

……………………………………………………………………………. [1 mark]

(c) A student wants to find the length of a curve as shown in Diagram 1.2. Seorang pelajar hendak mengukur panjang garis lengkung dalam Rajah 1.2

( i ) What would he use to measure the length of the curve ? Apakah yang perlu digunakan oleh pelajar tersebut untuk mengukur garis lengkung ?


0 1 2 3 4 5 6

Diagram 1.1

cm

Diagram 1.2

3

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[1 mark]

TABLE 1.3

(ii) Table 1.3 shows the results of the activity. What is the circumference of the beaker ? Jadual 1.3 menunjukkan keputusan aktiviti. Berapakan ukurlilit bikar ?

…………………………………………………………………………………………….. [1 mark]

(iii) Why did the student take three readings ? Mengapa pelajar itu mengambil tiga bacaan ?

.......................................................................................................................................................[1 mark]

2. Diagram 2.1 shows the structure of a plant cell. Diagram 2.1 menunjukkan struktur sel tumbuhan.

Diagram 2.1

(a) Name the labeled parts of Q and S in the space provided in Diagram 2.1.Namakan bahagian yang dilabelkan Q dan S di ruang yang disediakan dalam Diagram 2.1

[2 marks]

(b) State the function of the parts P or R of the cell. Complete Table 2. Nyatakan fungsi bahagian sel P atau R. Lengkapkan dalam Jadual 2.

Part of the cellBahagian sel

FunctionFungsi


Reading / Bacaan 1 2 3Length / Panjang

(cm)12.5 12.7 12.6

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Table 2 / Jadual 2[1 mark]

(c) Diagram 2.3 shows the structure of an animal cell. Rajah 2.3 menunjukkan struktur sel haiwan.

Diagram 2.3Give two differences between the plant cell and animal cell.

Berikan dua perbezaan di antara sel tumbuhan dan sel haiwan.

1. …………………………………………………………………………………………………………………

2. …………………………………………………………………………………………………………………[2 marks]

3. Diagram 3.1 shows some organs found in the human body. Rajah 3.1 merupakan beberapa organ di dalam badan manusia

X Y Z

DIAGRAM 3.1

(a) On Diagram 3.1, label organs X, Y and Z using the following words. Pada Rajah 3.1 labelkan organ X, Y dan Z menggunakan perkataan berikut.

Stomach / Perut Lungs / Peparu Heart / Jantung

[3 marks]


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(b) Draw lines to match the organs with the correct systems. Draw the lines as shown below. Padankan organ dengan sistem yang betul . Gariskan seperti contoh yang diberikan

Organs Systems

[2marks]

(c) Complete Diagram 3.2 to show the organisation of cells in the human body. Lengkapkan Rajah 3.2 untuk menunjukkan organisasi sel dalam badan manusia

DIAGRAM 3.2 [2 marks]

4 (a) Diagram 4.1 shows the result obtained when some materials are placed in a container with 250 cm3 of water.Rajah 4.1 menunjukkan keputusan yang diperoleh apabila beberapa bahan diletakkan ke dalam bekas yang berisi 250 cm3 air.


X

Y

Z Digestive system / Sistem pencernaan

Respiratory system / Sistem pernafasan

Circulatory system / Sistem peredaran darah

Nervous system / Sistem saraf

Organ OrganismCell/ Sel

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Diagram 4.1

( i) State the difference in the positions of the wood P compared to the marble in the water. Nyatakan perbezaan dalam kedudukan kayu P berbanding dengan guli di dalam air.

………………………………………………………………………………………………………………………….

………………………………………………………………………………………………………………………….[ 1 mark]

( ii) Give one reason for the answer in 4 ( a ) ( i ). Berikan satu sebab bagi jawapan di 4 ( a ) ( i )

……………………………………………………………………………………………………………………………

…………………………………………………………………………………………………………………………..[ 1 mark]

( b) Diagram 4.2 shows the readings of two different materials on the electronic balance. The readings of the electronic balance are recorded in Table 4.1. Rajah 4.2 menunjukkan bacaan dua bahan yang berbeza di neraca elektronik. Bacaan pada neraca elektronik direkodkan di Jadual 4.1.

Rubber ball Iron block Bola getah Blok besi

Table 4.1 shows the readings of the materials. Jadual 4.1 menunjukkan bacaan bagi kedua-dua bahan tersebut.

MaterialsBahan

Volume ( cm3 )lsi padu ( cm3)

Mass (g)Jisim ( g )

Density ( g /cm3)Ketumpatan( g/ cm3)

Rubber BallBola Getah 9 14.6 1.6Iron blockBlok besi

9 36.3 Y

Table 4.1

( i) Iron block has a mass of 36.3 g and a volume of 9 cm3. Calculate the value of Y.

Blok besi mempunyai jisim 36.3 g dan isi padu 9 cm3. Hitungkan nilai Y.


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Use the following formula: Gunakan formula yang berikut :

[2 marks]

( ii) The density of water is 1.0 g / cm3 while the density of mercury is 13.6 g / cm3. What will happen if the rubber ball is placed in a beaker containing water and mercury?Ketumpatan air ialah 1.0 g / cm3 manakala ketumpatan merkuri ialah 13.6 g /cm3. Apakah yang akan berlaku sekiranya bola getah diletakkan di dalam satu bikar yang berisi air dan merkuri?

…..……………………………………………………………………………………………………………………….

[ 1 mark]

( c ) Diagram 4.3 shows a submarine under the sea when the ballast tank is full of sea water. Rajah 4.3 menunjukkan sebuah kapal selam menyelam di dalam laut apabila tangki ballast dipenuhi dengan air laut .

Diagram 4.3 ( i) Based on Diagram 4.4, mark the water level in the ballast tank of the submarine which enables it to

float to the surface of water. Berdasarkan Rajah 4.4, tandakan paras air di dalam tangki balast untuk

membolehkannya terapung di atas air.

4.5.6.7.8.9.10.

Diagram 4.4

[ 1 mark]

d) State two applications of density in your daily life. Senaraikan dua aplikasi ketumpatan di dalam kehidupan seharian.


Density = mass [jisim ] Ketumpatan volume [ isi padu ]

Ballast tank Tangki balast

Tangki Balast

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i ) …………………………………………………..……………………………………..

ii ……………………………………………………………………….………………….. [ 2 marks ]

5. Diagram 5.1 shows the arrangement of marbles in three sections of a container to show the states of matter. Rajah 5.1 menunjukkan susunan guli-guli dalam tiga bahagian dulang untuk menunjukkan keadaan jirim.

Diagram 5.1

(a) Based on Diagram 5.1, which state of matter do the marbles show in. Berdasarkan Rajah 5.1, apakah keadaan jirim yang digambarkan oleh guli di bahagian)

P:…………………………………………………………………………………………………………………….

Q:…………………………………………………………………………………………………………………….

R:…………………………………………………………………………………………………………………….[3 marks]

(b) State one property for P and Q.(Nyatakan satu ciri P dan Q.)

Matter (Jirim) Property (Ciri-Ciri)

P

Q

[2 marks](c) State one example of substance that has similar property as Q. Nyatakan satu contoh bahan yang mempunyai ciri serupa dengan Q.

….…………………………………………………………………………………………………………………………….. [See overleaf

55/2 CONFIDENTIAL

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CONFIDENTIAL 55/2[1 mark]

(d) Suggest one way how the state of matter R can be changed to Q. Cadangkan satu cara bagaimana rupabentuk R boleh ditukar kepada Q.

………………………………………………………………………………………………………………………………..[1 mark]

(e) Diagram 5.2 shows four steps to separate the mixture of sand, iron and salt. By using the numbers 1,2,3 and 4, write the correct sequence in the box provided. Rajah 5.2 menunjukkan empat langkah untuk mengasingkan campuran pasir, besi dan garam. Dengan menggunakan nombor 1,2,3 dan 4, tuliskan urutan yang betul di dalam kotak yang disediakan.

Diagram 5.2


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[2 marks]

6. Diagram 6 shows the composition and percentage of the constituents of air. Rajah 6 menunjukkan komposisi dan peratus udara.

(a) On Figure 6, label the parts marked X, Y, and Z using the following words: Labelkan pada Rajah 6 bagi X,Y dan Z menggunakan perkataan berikut

NitrogenNitrogen

Carbon dioxideKarbon Dioksida

OxygenOksigen

[3 marks] (b) Based on Figure 6, which of the constituents of air, X, Y or Z . Berdasarkan Rajah 6, yang manakah kandungan udara bagi (i) is needed for respiration? diperlukan untuk respirasi?

…………………………………………………………………………………………………………..

(ii) is needed by green plants to make food during photosynthesis? diperlukan oleh tumbuhan hijau untuk membuat makanan semasa fotosintesis?

……………………………………………………………………………………………………………..[2 marks]

( c ) Compare content of oxygen in inhaled and exhaled air in the table below. Bandingkan kandungan oksigen dalam udara sedutan dan hembusan dalam Jadual dibawah.

Composition / Kandungan (%)


Diagram 6

21%

78%0.03%%%555 X : _____________________

Y: _____________________

Z : _____________________

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Gas / UdaraInhaled air

Udara sedutanExhaled air

Udara hembusan

Oxygen /oksigen 21% ………………

Carbon dioxide/karbon dioksida 0.03% 4%

Water vapour/wap air Less/Sedikit More/ Banyak

[1 mark]

Section B[20 marks]

Answer all questions.

7. Diagram 7 shows the arrangement of particles in four substances. Rajah 7 menunjukkan susunan zarah-zarah bagi empat bahan.

Diagram 7 Based on your observation in Diagram 7, Berdasarkan pemerhatian anda pada Rajah 7,

(a) State one property based on number of particles from substances of K, L, and M. Nyatakan satu sifat berdasarkan bilangan zarah daripada bahan K, L dan M.

J : …Made up of one type of atom / Terbina daripada sejenis atom ......

K : ………………………………………………………………………………………………………..

L : …………………………………………………………………………………………………………

M : …………………………………………………………………………………………………………. [3 marks]

(b) Classify J, K, L, and M in Diagram 7 into two groups based on common properties. Write the letters of the substances belonging to each group.Kelaskan J, K, L dan M dalam rajah 7 kepada dua kumpulan berdasarkan sifat-sifat sepunya. Tuliskan huruf bahan bagi setiap kumpulan itu.

Common property Sifat sepunya


Iron, Sodium chloride, Sulphur, WaterBesi, Natrium klorida, Sulfur, Air

Group 1 Group 2

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Letter of substanceHuruf bahan

[4 marks]

(c) State the method used to separate substance M. Nyatakan kaedah yang digunakan untuk memisahkan bahan M

……………………………………………………………………………………………………..[1 mark]

8. A student carried out an experiment to investigate the effect of the size of a container on the time taken for candles to burn before extinguished in Diagram 8.1. Seorang pelajar telah menjalankan eksperimen untuk mengkaji kesan saiz bekas terhadap masa yang diambil untuk lilin menyala sebelum terpadam di dalam Diagram 8.1.

Bekas X


Container X/ Bekas x

Beginning End

Container Y

Beginning End

Container Z

Beginning End

Diagram 8.1

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(a) State the variables involved in this experiment. Nyatakan pembolehubah yang terlibat dalam eksperimen ini.

Manipulated variable: Di manipulasi

……………………………………………………………

Responding variable: Bergerak balas

……………………………………………………………

Controlled variable: Dimalarkan

……………………………………………………………

[3 marks] (b) Based on Diagram 8, record the time taken for the candle to burn in different containers. Berdasarkan Rajah 8, rekodkan masa yang diambil untuk lilin menyala sebelum terpadam.

Container/ Bekas Time taken for candle to burn (s) / Masa yang diambil untuk lilin menyala

X

Y

Z

[3 marks]

(c) Based on the table in (b), draw a bar chart to show the time taken for the candle to burn in different containers. Berdasarkan Jadual (b), lukis carta bar yang menunjukkan masa yang diambil untuk lilin menyala didalam bekas berbeza.


10

20

30

40

Tim

e ta

ken

for

cand

le to

bur

n (s

) M

asa

yang

dia

mbi

l unt

uk li

lin

men

yala

(s)

Length of pendulum (cm)

Container/Bekas

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X Y Z [2 marks]

(d) Based on the bar chart in (c), what can be said about the time taken for the candles to burn? Berdasarkan carta bar dalam ( c ), apakah yang boleh dinyatakan tentang masa yang diambil untuk lilin itu menyala?

……………………………………………………………………………………………………………………..

…………………………………………………………………………………………………………………….[1 mark]

(e) State one inference from the experiment. Nyatakan satu inferen daripada eksperimen ini.

……………………………………………………………………………………………………………………..

…………………………………………………………………………………………………………………….[1 mark]

(f) State the relationship between the size of the container and the time taken for the candle to burn.Nyatakan hubungan di antara saiz bekas dan masa yang diambil untuk lilin menyala.

……………………………………………………………………………………………………………………..

…………………………………………………………………………………………………………………….[1 mark]

(g) A student drilled some holes on a container as shown in Diagram 8. In which container will the candle burn the longest? Circle the correct answer on Diagram 8. Seorang pelajar melubangkan beberapa lubang pada bekas dalam Rajah 8.2. Bekas yang manakah lilin menyala paling lama? Bulatkan jawapan yang betul pada Rajah 8.2.

P Q R

Diagram 8.2 [1 mark]


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CONFIDENTIAL 55/2-END OF QUESTION PAPER-

Prepared by; Checked by; Approved by;

…………………… …………………………….. ………………………. Pn.Junaidah Ramli Cik Annielyn Tini Cik Hannan Nasharuddin Penyelaras Form 1 Guru Sains Penolong KP Sains


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