Ppt2009 Science Form3(p2)

8/6/2019 Ppt2009 Science Form3(p2)

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Jalila2009-ppt-science form3 1

Name: ««««««««««««« Class:«««««««.

SECTION QUESTION Fullmarks

Marks

A

1 7

2 6

3 6

4 5

5 7

6 9

B7 8

8 12

Total Marks 60

SMK ISKANDAR SHAH, 32800 PARIT, PERAK«««««««««««.

PENILAIAN MENENGAH RENDAH 2009PEPERIKSAAN PERTENGAHAN TAHUN

(TINGKATAN 3)

1. This question paper consists of two sections: Section A and section B.2. Write your answer in the spacesprovided in the question paper.3. The diagrams in the questions

provided are not drawn to scaleunless stated.4. Mark allocated for each questionor part questions are shown in thebrackets.5. The time suggested to completeSection A is 60 minutes and SectionB 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.

DO NOT OPEN THE QUESTION PAPERUNTIL YOU ARE TOLD TO DO SO.

SULIT55/2SCIENCEPAPER 2MAY 20091 ½ hours

SCIENCE

Paper 2One Hour Thirty Minutes

Kertas soalan ini mengandungi 15 halaman bercetak

SULIT

DISEDIAKAN OLEH: DISEMAK OLEH: DISAHKAN OLEH:

««««««««««. «««««««««. «««««««(PN. JALILAWATI BT SAHUDIN) (PN MAZIAH BT HALIM PN. SHAMSIAH MOHD ZAIN

KETUA PANITIA SAINS GURU KANAN SAINS




SECTION A[ 40 MARKS]

Answer all questions.

The time suggested to complete this section is 60 minutes.Masa yang dicadangkan untuk melengkapkan bahagian ini ialah 60 minit.

1. Diagram 1.1 shows the structure of two cells.Rajah 1.1 menunjukkan struktur du sel.

DIAGRAM 1.1 DIAGRAM 1.2RAJAH 1.1 RAJAH 1.2

a) Label the following structures in Diagram 1.1.Labelkan struktur berikut di Rajah 1.

NucleusNukleus

CytoplasmSitoplasma

NeckLeher

[3 marks]( 3 markah)

b) Based on the structure in Figure 1.2, complete Table 1.

Berdasarkan struktur di Rajah 1.2 , lengkapkan Jadual 1.

Name of structure PNama struktur P

Function of structure PFungsi struktur P

TABLE 1JADUAL 1


c) State two difference between Figure 1.1 and Figure 1.2.Nyatakan dua perbezaan Rajah 1.1 dan Rajah 1.2.

i) _________________________________________________________________

ii) __________________________________________________________________ [2 mark]

( 2 markah)

SULIT

P




2. Diagram 2 shows a stomata on the surface of a leaf.Rajah 2 menunjukkan stoma pada permukaan daun.

FIGURE 2RAJAH 2

(a) Label the structures P, Q and R in Figure 2 using the words given below.Labelkan struktur Q dan R di Rajah 2 menggunakan perkatan-perkataan di bawah.

[3marks]( 3 markah)

(b) What is the function of P ? Apakah fungsi P?

__________________________________________________________________

[1 mark]( 1 markah)

(c) Why are the stomata important to plants ?Mengapakah stoma penting kepada tumbuhan?

__________________________________________________________________ [1 mark]( 1 markah)

(d) Give one reason why plants need to lose water.

Berikan satu sebab kenapa tumbuhan perlu menyingkirkan air.

__________________________________________________________________ [1 mark]

( 1 markah)

Chloroplast Stoma Guard cell

K loroplas Stoma Sel pengawal




3. Diagram 3 shows an experiment to study the reaction between metal and oxygen.Rajah 3 menunjukkan satu eksperimen mengkaji tentang tindakbalas di antara logamdan oksigen.

DIAGRAM 3

a) What is the function of the potassium permanganate crystals? Apakah fungsi kalium permanganat kristal?

_____________________________________________________________________

[1 mark]( 1 markah)

b) Between zinc and copper, which metal is more reactive towards oxygen?Di antara zink dan kuprum , logam yang manakah yang lebih reaktif terhadap oksigen?

_____________________________________________________________________

[1 mark]( 1 markah)

c) Name the product formed when zinc reacts with oxygen.Namakan hasil yang terbentuk bila zink bertindakbalas dengan oksigen.

______________________________________________________________________ [1 mark]( 1 markah)

c) Write the word equation for the reaction between copper and oxygen.

Tuliskan persamaan perkataan untuk tindakbalas antara kuprum dan oksigen.

+





e) Give one reason why metals such as gold and silver do not react with oxygen.Berikan satu sebab kenapa logam seperti emas dan perak tidak bertindakbalas denganoksigen.

_________________________________________________________________________ [1 mark]( 1 markah)

4. Diagram 4 shows the changes of state in matter.Rajah 4 menunjukkan perubahan keadaan jirim.

Diagram 4Rajah 4

a) Based on Diagram 4, name the following processes.Berdasarkan Rajah 4, namakan proses-proses yang berikut.

H:________________________________________

J: ________________________________________

K:________________________________________

L:_________________________________________

( 4 marks)

( 4 markah)




b) State one different between process H and I in terms of release heat or absorb heat.Nyatakan satu perbezaan antara proses H dan proses I dari segi penyingkiran ataupembebasan haba.

__________________________________________________________________ ( 1 mark )( 1 markah)

5) Diagram 5 shows the structure of blood flow in the human circulatory system.Rajah 5 menunjukkan struktur aliran darah dalam system peredaran darah manusia.

Diagram 5Rajah 5

a) Label the parts of the circulatory system in Diagram 5.Label bahagian-bahagian dalam system peredaran di dalam rajah 5.

Aorta Pulmonary artery Vena cava Pulmonary vein Aorta arteri pulmonari Vena kava vena pulmonari




b) Mark using arrows to show the flow of oxygenated blood and using arrows - - -" to show the flow of deoxygenated blood.

Tandakan mengunakan anak panah untuk menunjukkan aliran darah beroksigen

dan gunakan anak panah - - -" untuk menunjukkan aliran darah tanpa oksigen.( 1 mark)

( 1 markah)

b) State two characteristics of the blood vessels which transport blood from the heart to allparts of the body.Nyatakan dua ciri salur darah yang membawa darah keluar dari jantung ke seluruhbahagian badan

i) __________________________________________________________________

ii) __________________________________________________________________

( 2 marks)( 2 markah)

c) State what is the function of heart in blood circulatory system?Nyatakan apakah fungsi jantung dalam sistem peredaran darah?

________________________________________________________________________ [ 1 mark][ 1 markah]




6. A student carried out an experiment as in Diagram 6 to study the effects of stirring onthe rate of dissolving .Seorang pelajar menjalankan satu eksperimen seperti dalam Rajah 6 untuk mengkajikesan mengacau ke atas kadar keterlarutan.

Diagram 6 Rajah 6

a) State the controlled variables in the experiment.Nyatakan pembolehubah tetap dalam eksperimen ini.

i) ______________________________________________________________

ii) ______________________________________________________________ ( 2 mark)( 2 markah)

b) State the manipulated and responding variable.Nyatakan pembolehubah dimanipulasi dan pembolehubah bergerakbalas.

i) Manipulated variable: ______________________________________________ Pembolehubah dimanipulasi

ii) Responding variable: _____________________________________________ Pembolehubah bergerakbalas:

( 2 marks)( 2 markah)




c) Salt in which beaker will dissolve faster?Garam di dalam bikar yang manakah akan larut lebih cepat.

____________________________________________________________________ ( 1 mark)( 1 markah)

d) State the inference for the experiment.Nyatakan inferens bagi eksperimen ini.

_____________________________________________________________________ ( 1 mark)

e) State the relationship between the manipulated variable and the responding variable.Nyatakan hubungan di antara pembolehubah dimanipulasi dan pembolehubahbergerakbalas.

______________________________________________________________________ ( 1 mark)( 1 markah)

f) Suggest another way to make the solute in the experiment to dissolve faster .Cadangkan satu cara untuk melarutkan bahan di dalam eksperimen larut dengan lebihcepat.

______________________________________________________________________

(1 markah)[ 1 markah]

g) What can you deduce about the meaning of rate of dissolving? Apakah yang anda dapat rumuskan tentang maksud kadar keterlarutan.

______________________________________________________________________ ( 1 mark)( 1 markah)




7. Diagram 7 shows a picture of animals R, S, T, U, and V.Rajah 7 menunjukkn satu rajah haiwan-haiwan R, S, T, U, and V.

DIAGRAM 7RAJAH 7

Observe the animals in Diagram 7 carefully.Perhatikan haiwan-haiwan di Rajah 7 dengan teliti.

a) Based on your observations in Figure 7, state the characteristics for any four animalsR, S, T, U and VBerdasarkan pemerhatian anda di Rajah 7, nyatakan cirri-ciri untuk mana-mana empathaiwan R, S, T, U and V.

R. ______________________________________________________

S. ______________________________________________________

T. _____________________________________________________

U. _____________________________________________________

V. _____________________________________________________ [4 marks]( 4 markah)

R S

T

VU




b) Classify animals R, S, T, U and V into groups based on their common characteristics.Name the animal belonging to each group.

Kelaskan haiwan-haiwan R, S, T, U dan V kepada kumpulan berdasarkan cirri-cirisepunya mereka. Namakan haiwan ±haiwan dalam setiap kumpulan.

[4 marks ]

( 4 markah)




8. a) A baby is sleeping in the traditional spring cradle. When a bigger baby sleeps in thecradle, the spring becomes longer.

Seorang bayi sedang tidur di dalam buaian spring tradisional. Apabiila bayi yang lebih besar tidur di dalam buaian, didapati spring menjadi lebih panjang.

Diagram 8.1 Diagram 8.2

Rajah 8.1 Rajah 8.2

i) Based on the observations in Diagram 8.1 and Diagram 8.2, what is the differencein the extension of spring?Berdasarkan pemerhatian di Rajah 8.1 dan Rajah 8.2, apakah perbezaan di dalampemanjangan spring.

_________________________________________________________________

_________________________________________________________________ ( 1 mark)( 1 markah)

ii) What is your inference? Apakah inferens anda? _________________________________________________________________

_________________________________________________________________ ( 1 mark)( 1 markah)




iii) What is your hypothesis? Apakah hipoteisis anda? _________________________________________________________________

_________________________________________________________________ ( 1 mark)

( 1 markah)

b) Sheila conducts an experiment to investigate the situation in Diagram 8.1 and Diagram8.2. Diagram 8.3 shows the set-up of apparatus for the experiment.Sheila mengendalikan eksperimen untuk mengkaji situasi di Rajah 8.1 dan Rajah 8.2.Rajah 8.3 menunjukkan susunan alat radas untuk eksperimen itu.

Sheila takes the following steps:Sheila melakukan langkah-langkah yang berikut:

Step 1: After setting up the apparatus , Sheila adjust the ruler so that the pointer is at 0 ( zero).

Langkah 1: Selepas menyediakan alat radas, Sheilamembetulkan pembaris berada pada titik 0( kosong).

Step 2: A weight of 10 g is put on the pan and theextension of the spring is recorded.

Langkah 2: Satu pemberat 10 g diletakkan di ataspenimbang dan pemanjangan spring dicatatkan.

Step 3: Another weight of 10 g is added and the new extension is recorded.

Langkah 3: Satu pemberat 10g yang lain ditambah danpemanjangan spring yang baru dicatatkan.

Step 4: Step 3 is repeated with another weight of 10 g weight until a total of four weights are used.

Langkah 4: langkah 3 diulang dengan satu lagipemberat 10 g yang lain sehinga 4 pemberat digunakan.




i) Record the extension of the spring in the space provided.Catatkan pemanjangan spring di dalam ruang yang disediakan.




ii) Complete table 8.4 on Sheila¶s observations.Lengkapkan jadual 8.4 pada pemehatian Sheila.

Number of weights (g)Bilangan pemberat ( g)

0 1 2 3 4

Extension of spring ( cm)Pemanjangan spring ( cm)

c) Based on Table 8.4 , draw a graph of the extension of the spring against the numer of weights used.Berdasarkan Jadual 8.4, lukiskan graf untuk pemanjangan spring melawan bilanganpemberat yang digunakan.

[ 3 marks][ 3 markah]




d) State the variables involved in this experimentNyatakan pembolehubah yang terlibat di dalam eksperimen ini.

Manipulated variablePembolehubah dimanipulasi

Responding variablePembolehubah bergerakbalas

Controlled variablePembolehubah tetap

( 3 marks)

e) What is the conclusion of this experiment?

Apakah kesimpulan bagi eksperimen ini?

_______________________________________________________________________

_______________________________________________________________________ ( 2 mark)

( 2 markah)

f) Based on the graph, predict the extension produced by a weight of mass 25 g?Berdasarkan pada graf, ramalkan pemanjangan yang akan diperoleh apabila berat

ialah 25 g.

_______________________________________________________________________ ( 1 mark)

( 1 markah)END OF THE QUESTION

SOALAN TAMAT

Ppt2009 Science Form3(p2)

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