This document contains instructions and questions for a science exam. It consists of 3 sections - Section A with 20 marks, Section B with 30 marks, and Section C which students must answer one of two questions. Section A is allotted 60 minutes, Section B is 50 minutes, and Section C is 40 minutes. Students can answer in either English or Malay. The questions cover topics like chemical reactions, optics, elasticity, density and the periodic table.

1. JABATAN PELAJARAN TERENGGANU
SET 2
DO NOT OPEN THIS TEST PAPER UNTIL YOU ARE TOLD TO DO SO
1 This question paper consists of three sections: Section A,
Section B and Section C
2 Answer all questions in Section A and Section B.
Write your answers for Section A and Section B clearly
in the space provided on the question paper.
3 For Section C, answer Question 10 and choose another
Question 11 or Question 12. Write your answer for
Section C on the lined pages provided at the end of
this paper. Answer should be clear and logical.
4 The marks allocated for each sub-part of a question
are shown in brackets.
5 The time suggested to complete Section A is 60 minutes,
Section B is 50 minutes and Section C is 40 minutes.
6 You are allowed to answer the question in English
or Bahasa Melayu.
1511/2
Science
Paper 2
2 ½ hours
SCIENCE
Paper 2
Two Hours and Thirty Minutes
For Examiner’s Use
Section Question Marks
A
1
2
3
4
B
5
6
7
8
9
C
10
11
12
Total

2. SET 2 : PAPER 2 1511/2
This question paper consists of 16 printed pages
Section A / Bahagian A
[20 marks]
Answer all questions (Jawab semua soalan)
(The time allocated for this section is 60 minutes /
Masa yang dicadangkan untuk bahagian ini ialah 60 minit)
1 Table 1 shows the result of an experiment to show the reaction between 3.0 g zinc
with 100 cm 3
dilute hydrochloric acid.
Jadual 1 menunjukkan keputusan eksperimen hasil tindak balas antara 3.0 g logam zink
dengan 100 cm 3
asid hidroklorik cair.
Time/minutes
Masa/minit
0 1 2 3 4 5 6
Volume of gas/ cm3
Isipadu gas / cm3 0 27 46 57 64 67 67
TABLE 1
JADUAL 1
(a) State the hypothesis for this experiment.
Nyatakan hipotesis dalam eksperimen di atas.
...................................................................................................................................................
[1 mark]
(b) Plot a graph of gas volume against time based on Table 1
Lukiskan graf isipadu gas melawan masa berdasarkan Jadual 1
2

3. SET 2 : PAPER 2 1511/2
[2 marks]
(c) Based on the graph that you have plotted, determine the volume of the gas released at 2½
minute.
Berdasarkan graf anda, tentukan isipadu gas yang terbebas pada masa 2½ minit.
...................................................................................................................................................
[1 mark]
(d) Predict the volume of gas released at 7 minutes.
Ramalkan isipadu gas yang terbebas pada minit ke 7.
...................................................................................................................................................
[1 mark]
3
10
20
30
40
50
60
70
Volume of
gas (cm3
)
Isipadu
gas (cm 3
)
0 1 2 3 4 5 6 7 8
Time (minutes) / Masa (minit)

4. SET 2 : PAPER 2 1511/2
2 Diagram 1 shows an experiment to find the relationship between lens thickness and its image
distance.
Rajah 1 menunjukkan eksperimen untuk mengkaji hubung kait antara ketebalan kanta dengan jarak
imejnya
An image of a distant object through lens KI is formed on a white screen. The screen is then adjusted
so that a sharp image is formed. The experiment is repeated using lens K2 and K3 with different
thickness. The image distance of each lens is recorded in table 2.
Menggunakan satu objek jauh melalui kanta KI, skrin dilaraskan supaya menghasil satu imej tajam.
Ekperimen itu diulang dengan menggunakan kanta K2 dan K3 yang mempunyai ketebalan berbeza.
Jarak imej setiap kanta dicatatkan. Keputusan yang perolehi seperti dalam Jadual 2.
(a) State one characteristic of the image observed.
Tuliskan satu pemerhatian sifat imej.
...................................................................................................................................................
Lens
Kanta
Image distance ( cm )
Jarak imej ( cm )
K1
.......................................
K2 3.5
K3 1.5
4
Distant Object
Objek jauh
Lens K1
Kanta K1
White screen
Skrin putih
Sharp image
Imej tajam
DIAGRAM 1
RAJAH 1
TABLE 2
JADUAL 2

5. SET 2 : PAPER 2 1511/2
[1 mark]
(b) Measure and state the image distance of lens K1 in table 2.
Ukur dan catat jarak imej bagi kanta K1 dalam dalam Jadual 2.
[1 mark]
( c) Based on Table 2, which of the lenses is the thinnest?
Berdasarkan Jadual 2, kanta manakah paling nipis?
...................................................................................................................................................
[1 mark]
(d) State one hypothesis for this experiment.
Nyatakan satu hipotesis dalam eksperimen itu.
...................................................................................................................................................
[1 mark]
(e) What is the responding variable for this experiment.
Nyatakan satu pembolehubah yang bergerakbalas
...................................................................................................................................................
[1 mark]
3 Diagram 2(a) and diagram 2(b) show the experiment carried out to compare the elasticity of
rubber
band M and rubber band N.
Rajah 2(a) dan rajah 2(b) menunjukkan eksperimen untuk membandingkan kekenyalan
getah M dan getah N.
5

6. SET 2 : PAPER 2 1511/2
(a) Write one observation for the above experiment?
Tuliskan satu pemerhatian bagi eksperimen di atas?
...................................................................................................................................................
[1 mark]
(b) Write one inference for the observation stated in 3(a)
Tuliskan satu inferens yang boleh dibuat berdasarkan pemerhatian di 3(a).
...................................................................................................................................................
[1 mark]
The result of the experiment is shown in Diagram 2(c).
Keputusan eksperimen ditunjukkan dalam Rajah 2(c).
200g
Rubber band M
Jalur getah M
Weight
Pemberat
200g
Rubber band N
Jalur getah N
Weight
Pemberat
DIAGRAM 2(a)
Rajah 2(a)
DIAGRAM 2(b)
Rajah 2(b)
6

7. SET 2 : PAPER 2 1511/2
(c) State one fixed variable for this experiment.
Nyatakan satu pembolehubah yang dimalarkan dalam eksperimen ini.
...................................................................................................................................................
[1 mark]
(d) (i) What is the relationship between length and load?
Apakah hubungan antara panjang dengan pemberat?
...................................................................................................................................................
[1 mark]
(ii) Rubber band N is vulcanised rubber. What is meant by vulcanised rubber based on this
experiment (definition by operation).
Getah N adalah getah tervulkan. Nyatakan maksud bagi getah tervulkan berdasarkan
eksperimen ini (definisi secara operasI)
...................................................................................................................................................
[1 mark]
4 Diagram 3 shows an experiment to study the weight of plastisine in air and water.
Rajah 3 menunjukkan eksperimen untuk mengkaji berat plastisin di udara dan di dalam air.
The Length of rubber band
Panjang jalur getah
Weight (Pemberat (g))
Rubber band M
Jalur getah M
Rubber band N
Jalur getah N
12
2
14
4
16
18
20
200 400 600 800
10
7
0
10
N
0
10
N
5 5
Water / Air
Air / Udara
Spring Balance
Neraca Spring
Plasticine
Plastisin
DIAGRAM 2(c)
RAJAH 2(c)

8. SET 2 : PAPER 2 1511/2
(a) State the weight of the plasticine in air together with its unit.
Catat berat plastisin di udara berserta unitnya.
...................................................................................................................................................
[1 mark]
(b) Write one observation for this experiment.
Tulis satu pemerhatian bagi eksperimen itu
...................................................................................................................................................
[1 mark]
(c) Write one inference for the observation made in 4(b).
Nyatakan satu inferens berdasarkan pemerhatian dalam 4(b).
...................................................................................................................................................
[1 mark]
(d) State the manipulated variable for this experiment.
Nyatakan pembolehubah yang dimanipulasikan.
...................................................................................................................................................
[1 mark
(e) Predict the reading on the spring balance if the plasticine is dipped in sea water.
Ramalkan bacaan neraca jika plastisin itu di masukkan ke dalam air laut.
...................................................................................................................................................
[1 mark]
Section B / Bahagian B
[30 marks]
8
DIAGRAM 3
RAJAH 3

9. SET 2 : PAPER 2 1511/2
Answer all questions / Jawab semua soalan
(The time allocated for this section is 50 minutes /
Masa yang dicadangkan untuk bahagian ini ialah 50 minit)
1 Diagram 4 shows an incomplete Periodic Table.
Rajah 4 menunjukkan lakaran Jadual Berkala yang tidak lengkap.
(a) How are the elements in the Periodic Table arranged?
Bagaimanakah unsur-unsur dalam Jadual Berkala disusun?
...................................................................................................................................................
[1 mark]
(b) Based on Diagram 4, state
Berdasarkan Rajah 4, nyatakan
(i) the type of element N
jenis unsur N
...................................................................................................................................................
(ii) the element with the biggest proton number.
unsur yang mempunyai nombor proton paling besar.
...................................................................................................................................................
J
K L
M N P
9
I
III IVV IIV VI VII
VIII
DIAGRAM 4
RAJAH 4

10. SET 2 : PAPER 2 1511/2
[2 marks]
(c) State the changes of element type from K to L in the Periodic Table.
Nyatakan perubahan jenis unsur dari K ke L dalam Jadual Berkala.
...................................................................................................................................................
[1 mark]
(d) State one similar characteristic between element L and element P.
Nyatakan satu sifat yang sama antara unsur L dan unsur P
...................................................................................................................................................
[1 mark]
(e) Name the gas released from the reaction between element K with water.
Namakan gas yang terhasil dari tindak balas antara unsur K dengan air.
...................................................................................................................................................
[1 mark]
2 Diagram 5 shows a schematic diagram of a man with black iris married to a woman with blue iris
Rajah 5 menunjukkan skema perkahwinan seorang lelaki yang iris mata berwarna hitam dengan
wanita yang iris mata berwarna biru.
If the characteristic of black iris is dominant and blue iris is recessive,
10
Hh
hh
Black iris father
Bapa iris mata hitam
Blue iris mother
Ibu iris mata biru
Process P (Proses P) Procee Q (Proses Q)
Process R (Proses R)
hhh
DIAGRAM 5
RAJAH 5
H h
S T U V

11. SET 2 : PAPER 2 1511/2
Jika sifat iris mata hitam adalah dominan dan sifat iris mata biru adalah resesif.
(a) State the iris colour of offspring S and V
Nyatakan warna iris mata bagi anak S dan V
(i) S :……………………………………………………………………..
(ii) V : …………………………………………………………………….
[2 marks]
(b) What is the ratio of having black iris offspring compared to blue iris offspring?
Berapakah nisbah untuk mendapatkan anak yang warna iris mata hitam berbanding dengan
iris mata biru.
...................................................................................................................................................
[1 mark]
(c) Name process P and R.
Namakan proses P dan R.
(i) P : ………………………………………………………………………
(ii) R : ……………………………………………………………………..
[2 marks]
(d) Name the type of variation in this question.
Namakan jenis variasi dalam soalan ini.
...................................................................................................................................................
[1 mark]
3 Diagram 6 shows the mechanism that occurs in a body of a human infected by a kind of disease.
Rajah 6 menunjukkan mekanisme yang berlaku dalam badan apabila badan dijangkiti oleh sesuatu
penyakit.
(a) (i) Label X on Diagram 6.
Labelkan X pada Rajah 6.
11
PATOGEN
WHITE BLOOD CELLS
SEL DARAH PUTIH X ........................
OUTSIDE THE BODY
LUAR BADAN
INSIDE THE BODY
DALAM BADAN
Reaction
Bertindak balas
Producing
Menghasilkan
Inducing
Merangsangkan
DIAGRAM 6
RAJAH 6

12. SET 2 : PAPER 2 1511/2
[1 mark]
(ii) What is its function in avoiding diseases infections?
Apakah peranannya dalam pencegahan penyakit ?
...................................................................................................................................................
[1 mark]
(b) Suggest one way how pathogen can enter our bodies.
Cadangkan satu cara bagaimanakah patogen dapat memasuki ke dalam badan.
...................................................................................................................................................
[1 mark]
(c) Name the type immunity based on the mechanism in Diagram 6.
Namakan jenis keimunan berdasarkan mekanisme pada Rajah 6.
...................................................................................................................................................
[1 mark]
(d) (i) Apart of pathogen in Diagram 6 , state one other procedure to produce X.
Selain daripada patogen pada Rajah 6 ,nyatakan satu kaedah lain untuk menghasilkan
bahan X.
...................................................................................................................................................
[1 mark]
(ii) Give one example of disease that could be treated using the procedure in (d)(i)
Namakan satu contoh penyakit yang dirawat dengan menggunakan kaedah dalam (d)(i)
...................................................................................................................................................
[1 mark]
4 Diagram 7 shows the thinning of layer A in the Earth atmosphere.
12

13. SET 2 : PAPER 2 1511/2
Rajah 7 menujukkan penipisan lapisan A yang berada di atmosfera Bumi.
Layer A (Lapisan A)
(a) (i) Name layer A. (Namakan lapisan A)
...................................................................................................................................................
[1 mark]
(ii) What is the importance of layer A to Earth?
Apakah kepentingan lapisan A terhadap bumi?
...................................................................................................................................................
[1 mark]
(b) How does the thinning of layer A could occur?
Bagaimanakah penipisan lapisan A boleh berlaku ?
...................................................................................................................................................
[1 mark]
(c) State one bad effect on human being caused by the thinning of layer A.
Nyatakan satu kesan buruk kepada manusia akibat penipisan lapisan A itu.
...................................................................................................................................................
[1 mark]
(d) How does the thinning of layer A affect the food chain of sea habitat?
Mengapakah penipisan lapisan A boleh menjejaskan rantai makanan habitat laut ?
...................................................................................................................................................
[1 mark]
(e) State one effort that could be done by the world population in avoiding the thinning of layer A.
Nyatakan satu usaha yang boleh telah di ambil oleh penduduk dunia untuk
mengatasi masalah penipisan lapisan A itu.
...................................................................................................................................................
13
Earth
Bumi
Sunlight
Cahaya
Matahari
DIAGRAM 7
RAJAH 7

14. SET 2 : PAPER 2 1511/2
[1 mark]
5 Diagram 8 shows a flow diagram of plastic disposal.
Rajah 8 menunjukkan carta alir pelupusan barangan plastik.
(a) What is process Y and method X in Diagram 8.
Lengkapkan proses Y dan cara X dalam Rajah 8.
[2 marks]
(b) Why do plastic wastes retain in the environment?
Mengapakah barangan plastik terpakai yang dibuang akan berkekalan dalam alam sekitar?
...................................................................................................................................................
[1 mark]
(c) Open burning of plastics lead to Green House Effect.
Name the gas released from the burning of plastics that lead to Green House Effect.
Pembakaran terbuka sampah plastik akan menyebabkan Kesan Rumah hijau.
Namakan gas hasil pembakaran plastik yang menyebabkan Kesan Rumah Hijau?
...................................................................................................................................................
[1 mark]
(d) State one adverse effect on human health due to the inhaling of toxic gaseous from the
burning of plastics.
Nyatakan satu kesan buruk ke atas kesihatan manusia, akibat menyedut gas beracun dari
pembakaran plastik.
...................................................................................................................................................
[1 mark]
(e) Name the type of plastic that could be recycled.
Namakan jenis plastik yang boleh dikitar semula.
...................................................................................................................................................
[1 mark]
Bahagian C
14
Process Y
Proses Y :.............................
Method X
Cara X ..............................
Burning inincinerator
Bakar dalam insinerator
Plastic goods
Barangan plastik
Used plastic
Plastik terpakai
Disposal
lupus
DIAGRAM 8
RAJAH 8

15. SET 2 : PAPER 2 1511/2
[20 marks]
Answer Question 1 and any one of Question 2 or Question 3.
(The time allocated for this section is 40 minutes)
Jawab soalan satu dan mana-mana satu soalan 2 atau soalan 3.
(Masa yang dicadangkan untuk bahagian ini ialah 40 minit)
1
(a) Based on the above statement, write a suitable hypothesis.
Berdasarkan pernyataan di atas, tuliskan satu hipotesis yang sesuai. [1 mark]
(b) Explain an experiment that could be carried out in the laboratory to prove the hypothesis.
Your explanation should include the followings:
Huraikan satu eksperimen yang boleh anda jalankan di makmal untuk membuktikan hipotesis itu
Huraian anda hendaklah mengandungi perkara berikut :
(i) Aim of the experiment
Tujuan eksperimen [1 mark]
(ii) Identification of variables
Mengenalpasti pembolehubah [2 marks]
(iii) List of materials and apparatus
Senarai radas dan bahan [1 mark]
(iv) Procedure
Kaedah [3 marks]
(v) Tabulation of data
Penjadualan data [1 mark]
(vi) Conclusion
Kesimpulan [1 mark]
15
A student finds out that the load with the mass of 500 gram has longer oscillation period
compared to the load with the mass of 100 gram.
Seorang pelajar mendapati pemberat berjisim 500 gram berayun lebih lama berbanding
dengan pemberat berjisim 100 gram

16. SET 2 : PAPER 2 1511/2
2 (a) Name two parts of brain and state the main function of each part.
Namakan dua bahagian otak serta nyatakan fungsi utama setiap bahagian.
[4 marks]
(b) Diagram 9 shows the functions of hormones secreted by endocrine glands.
Rajah 9 menunjukkan fungsi hormon yang dihasilkan oleh kelenjar endokrin.
Study the functions of hormone in Diagram 9. Explain how you could derive a concept based on
the information in the diagram .
Kaji fungsi hormon tersebut. Terangkan bagaimana anda membina suatu konsep berdasarkan
maklumat dalam Rajah 9.
Your explanation of the concept must be based on the followings:
Penerangan anda tentang konsep itu hendaklah berdasarkan kepada perkara berikut:
• Identify two common characteristics
Kenal pasti dua ciri sepunya
• Construct initial concept
Membina konsep awal
• Give other examples and other examples in relation to the concept
Memberikan contoh lain dan bukan contoh yang berkaitan dengan konsep
• Explain the actual concept
Menjelaskan konsep sebenar
[6 marks]
16
HORMONE
HORMON
Promote the growth
of bones
Menggalakkan pertumbuhan
tulang rangka
Control physical and mental
growth
Mengawal pertumbuhan
fizikal dan mental
Increase the rate of
heart beat
Meningkatkan kadar
denyutan jantung
Control the level of sugar in
the blood
Mengawal aras gula
dalam darah
DIAGRAM 9
RAJAH 9

17. SET 2 : PAPER 2 1511/2
3 (a) Explain four efforts to increase national food production.
Terangkan empat usaha untuk meningkatkan pengeluaran makanan negara.
[4 marks]
(b) A farmer finds out that his corn plants are yellowish and stunted. Explain how the farmer could
improve his technique so that he would have healthy corn plants. Your explanation should be
based on the followings:
Seorang petani mendapati daun pokok jagung yang ditanam terbantut dan kekuningan.
Terangkan bagaimana petani tersebut dapat menghasilkan pokok jagung yang subur.
Penerangan anda mestilah berdasarkan perkara berikut.
• Objective
Kenalpasti matlamat [1 mark]
• Three alternatives
Kenalpasti tiga alternatif [3 marks]
• Arranging the alternatives in order
Menyusun alternatif mengikut urutan [1 mark]
• Choose the best alternative
Memilih alternatif terbaik [1 mark]
END OF THE QUESTION PAPER
KERTAS SOALAN TAMAT
17