Jalila2009-ppt-science form3 1 Name: ««««««««««««« Class:«««««««. SECTION QUESTION Full marks Marks A 1 7 2 6 3 6 4 5 5 7 6 9 B 7 8 8 12 Total Marks 60 SMK ISKANDAR SHAH, 32800 PARIT, PERAK «««««««««««. PENILAIAN MENENGAH RENDAH 2009 PEPERIKSAAN PERTENGAHAN TAHUN(TINGKATAN 3) 1. This question paper consists oftwo sections: Section A andsection B. 2. Write your answer in the spaces provided in the question paper. 3. The diagrams in the questions provided are not drawn to scale unless stated. 4. Mark allocated for each question or part questio ns are shown in the brackets. 5. The time s uggested 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 answersheet at the end of the examination. DO NOT OPEN THE QUESTION PAPER UNTIL YOU ARE TOLD TO DOSO.SULIT 55/2 SCIENCE PAPER 2 MAY2009 1 ½ hours SCIENCE Paper 2 One 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
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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.
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.
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?
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?
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.
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.
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
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.
e) State the relationship between the manipulated variable and the responding variable.Nyatakan hubungan di antara pembolehubah dimanipulasi dan pembolehubahbergerakbalas.
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.
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)
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.
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.
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.
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