Sains Tingkatan 2
Sains Tingkatan 2
20 MARKAH / 20 MARKS
JAWAB SEMUA SOALAN / ANSWER ALL QUESTIONS.
1. Apakah langkah yang boleh diambil untuk mencegah aktiviti penebangan hutan?
What step can be taken to prevent deforestation activity?
A Menguatkuasakan undang-undang
Enforce the law
B Menggunakan kaedah kawalan biologi
Uses biological control methods
C Memperkenalkan kaedah pertanian berteres
Introduces terraced farming methods
D Menggalakkan pembukaan hutan untuk pembangunan
Encourages the clearing of forests for development
2. Antara yang berikut, individu yang manakah memerlukan lebih banyak tenaga?
Which of the following individual needs more energy?
A Kerani
Clerk
B Doktor
Doctor
C Buruh
Labour
D Tukang jahit
Tailor
4. Antara yang berikut, medium manakah menyebabkan bunyi merambat paling perlahan?
Which of the following medium causes sound to propagate the slowest?
A Gas
Gas
B Cecair
Liquid
C Pepejal
Solid
D Vakum
Vacuum
1
5. Bintang berasal daripada peringkat X. Apakah nama peringkat X?
A star is originated from stage X. What is the name of stage X?
A Raksasa merah
Red giant
B Lohong hitam
Black hole
C Supernova
Supernova
D Nebulae
Nebula
R - Gas-gas dan zarah debu dalam nebula ditarik oleh daya tarikan graviti
yang kuat sehingga membentuk teras yang padat
- The gases and dust particles in a nebula are pulled by a strong
gravitational force until it becomes compact core.
A R,S,Q,P
B R,Q,S,P
C S,R,Q,P
D S,Q,R,P
L
K
2
Berdasarkan rajah di atas, di manakah pencernaan lemak berlaku?
Based on the diagram above, where does the digestion of fats take place?
A J dan K
J and K
B K dan M
K and M
C J, K dan L
K, K and L
D K, L dan M
K, L and M
Tiub visking
Visking tube
Larutan kanji +
larutan glukosa
Starch solution +
glucose solution
Air suling (37oC)
Distilled water (37oC)
Antara yang berikut, yang manakah dikesan berada di dalam air suling selepas 1 jam?
Which of the following is detected in the distilled water after 1 hour?
A Lemak
Fat
B Kanji
Starch
C Protein
Protein
D Glukosa
Glucose
Antara berikut, yang manakah benar tentang ciri penyesuaian T untuk menjalankan
fungsinya?
Among the following, which is true about the adaptation of T to perform its function?
3
Dinding villus Bilangan villus
Wall of villus Number of villus
A Dinding nipis Bilangan sedikit
Thin wall Less number
B Dinding nipis Bilangan banyak
Thin wall More number
C Dinding tebal Bilangan sedikit
Thick wall Less number
D Dinding tebal Bilangan banyak
Thick wall More number
A 0.5 A
B 1.0 A
C 2.0 A
D 4.0 A
11. Rajah menunjukkan empat bebola politena telah digosok dengan kain bulu dan digantung
secara berpasangan.
Diagram shows four polythene balls that have been rubbed with a woollen cloth and hung in
pairs.
J K
4
Apakah yang dapat diperhatikan apabila bebola politena tersebut dirapatkan?
What can be observed when the polystyrene balls are brought together?
J K
A Menarik Menarik
Attract Attract
B Menolak Menarik
Repel Attract
C Menarik Menolak
Attract Repel
D Menolak Menolak
Repel Repel
12. Gelombang bunyi yang manakah menunjukkan frekuensi yang paling tinggi?
Which sound wave has the highest frequency?
13. Rajah 15 menunjukkan aplikasi gelombang bunyi dalam dua situasi berbeza.
Diagram 15 shows the use of sound wave in two different situations.
Rajah 15 / Diagram 15
5
Apakah ciri gelombang bunyi yang digunakan dalam situasi di atas?
What is the characteristic of the sound waves used in the above situation?
Rajah / Diagram 16
A Getaran
Vibration
B Petikan
Strumming
C Pergerakan
Movement
D Nyanyian
Singing
Rajah 5 / Diagram 5
6
Apakah persamaan bagi ketiga-tiga organisma di atas?
What is the similarity among the three organisms above?
A Melakukan persenyawaan dalam.
Engage in internal fertilization.
B Bertelur.
Lay eggs.
C Menyusukan anak.
Nurse their offspring.
D Berdarah panas.
Warm-blooded.
Vertebrata
Vetebrates
A Platipus
Platypus
B Kelawar
Bat
C Buaya
Crocodile
D Salamander
Salamander
Rajah 12 / Diagram 12
7
Antara menu berikut, manakah sesuai untuk pesakit yang organ Q gagal berfungsi?
Which of the following menus is suitable for a patient whose organ Q is dysfunctional?
18. Antara yang berikut, padanan yang manakah betul tentang hasil akhir pencernaan dan
kegunannya kepada badan?
Which of the following is correct about the end result of digestion and its use for the body?
19. Process X can increase the content of oxygen in water to remove unpleasant odour and taste. What
is process X?
Proses X dapat menambah kandungan oksigen di dalam air untuk menyingkirkan baud an
rasa yang kurang menyenangkan. Apakah proses X?
A Filtration
Penurasan
B Oxidation
Pengoksidaan
C Sedimentation
Pengenapan
D Coagulation
Penggumpalan
8
20. What is the importance of adding slaked lime during the water purification process?
Apakah kepentingan kapur mati yang ditambah semasa proses pembersihan air?
A Kill microorganisms
Membunuh mikroorganisma
B Prevent tooth decay
Mengelakkan pereputan gigi
C Increase oxygen content in water
Menambah kandungan oksigen di dalam air
D Reduce the acidity of water
Mengurangkan keasidan air
BAHAGIAN B / SECTION B
20 MARKAH / 20 MARKS
JAWAB SEMUA SOALAN / ANSWER ALL QUESTIONS.
(i) Kepelbagaian organisma hidup dan bukan hidup ialah (biodiversiti /ekosistem)
Diversity of living and non-living organism is (biodiversity / ecosystem).
(ii) Pengelasan benda hidup dan benda bukan hidup boleh dibuat menggunakan kekunci
(dikotomi / klasifikasi).
Classification of living things and non-living things can be done using (dichotomy /
classification) key.
[2 markah / 2 marks]
1. (b) Rajah di bawah menunjukkan seekor haiwan (spesis endemik) yang tinggal di suatu
habitat di lokasi yang spesifik.
The diagram below shows an animal (endemic species) that lives in a habitat at a
specific location.
Tandakan (/) pada ruangan yang disediakan, contoh organisma lain yang turut tergolong
dalam kumpulan haiwan ini.
Tick (/) on the space provided, examples of other organisms that also belong to this group of
animals.
9
( ) ( ) ( )
[2 markah / 2 marks]
Q S
(b) Padankan organ R dan S kepada fungsi yang betul berdasarkan pernyataan di bawah.
Match organ R and S to it’s correct function based on the statements below.
Organ Fungsi
Organ Function
R Proses penyerapan semula air berlaku di dalam organ ini
The process of reabsorption of water occurs in this organ.
S Makanan yang tidak tercerna dikenali sebagai tinja akan
memasuki organ ini.
Undigested food, known as feces will enter this organ.
[2 markah /2 marks]
10
3. (a) Gariskan jawapan yang betul tentang komposisi air.
Underline the correct answer about the composition of water.
(i) Bahan yang boleh melarut di dalam cecair ialah (zat terlarut / pelarut).
A substance that can dissolve in a liquid is (solute / solvent).
[2 markah / 2 marks]
P Q
Penyataan Tandakan ( √ )
Statement Mark ( √ )
i. Boleh melarutkan banyak lagi zat terlarut.
Can dissolve more solute.
Boleh melarutkan sedikit sahaja lagi zat terlarut.
ii. Can dissolve less solute.
Kuantiti zat terlarut yang banyak di dalam pelarut.
iii. More amount of solute in the solvent.
[2 markah / 2 marks]
11
4. (a) Padankan galaksi berikut dengan jenisnya yang betul.
Match the following galaxies with the correct type.
[2 markah / 2marks]
[2 markah / 2marks]
12
5 Rajah 5 menunjukkan susunan radas yang disediakan untuk mengkaji proses
penyerapan makanan tercerna. Radas tersebut dibiarkan selama dua jam.
Diagram 5 shows the apparatus set up prepared to study the process of absorption of
digested food. The apparatus is left for two hours.
Rajah 5 / Diagram 5
a) Jadual 5 menunjukkan ujian yang dijalankan ke atas air di dalam tabung uji dalam
Rajah 5.
Table 5 shows the tests carried out on the water in the test tube in the Diagram 5.
Tulis nama ujian di dalam jadual tersebut berdasarkan pilihan yang diberikan.
Write the name of test in the table based on the given option
Pemerhatian Ujian
Observation Test
Jadual 5 / Table 5
[2 markah / 2marks]
13
b) Rajah 5.1 menunjukkan sistem pencernaan manusia. Tandakan (✔) bagi bahagian
yang mencernakan protein.
Diagram 5.1 shows the human digestive system. Tick (/) the parts that digest
protein.
[2 markah / 2marks]
14
BAHAGIAN C / SECTION C
60 MARKAH / 60 MARKS
JAWAB SEMUA SOALAN / ANSWER ALL QUESTIONS.
1. Rajah menunjukkan susunan radas untuk mengkaji kesan luas permukaan terdedah
terhadap kadar penyejatan. Penyiasatan dijalankan pada suhu bilik.
Diagram shows the apparatus set-up to study the effect of the exposed surface area to
the rate of evaporation. The investigation was carried out at room temperature.
15
(a) Nyatakan satu pemerhatian berdasarkan rajah.
State one observation based on the diagram.
______________________________________________________________________
[1 markah/1mark]
______________________________________________________________________
[1 markah/1mark]
(d) Nyatakan pemboleh ubah yang dimanipulasikan dan bergerak balas dalam eksperimen
ini. State manipulated variable and responding variable in this experiment.
[2 markah/2marks]
(e) Eksperimen 1 diulangi dengan meletakkan susunan radas berhadapan dengan dengan
kipas meja yang sedang berputar. Ramalkan masa yang diambil untuk kertas turas
mengering.
Experiment 1 is repeated by placing the apparatus in front of rotating table fan.
Predict the time taken for the filter paper to dry.
______________________________________________________________________
[1 markah/1mark]
Jumlah
168
2. Rajah meunjukkan dua spesies haiwan akuatik X dan Y.
Diagram shows two species of aquatic animals X and Y.
X Y
______________________________________________________________________
[1 markah/1mark]
X:____________________________________________________________________
Y:____________________________________________________________________
[2 markah/2marks]
(c) Seorang saintis menemui beberapa jenis tumbuhan di hutan dan ingin mengelaskan
tumbuhan-tumbuhan tersebut secara sistematik. Nyatakan nama kaedah tersebut dan
jelaskan bagaimana kaedah tersebut dilaksanakan.
A scientist discovered several types of plants in the forest and wants to classify them
systematically. State the name of the method and describe how the method is
implemented.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
[3 markah/3marks]
17
(d) Nyatakan perbezaan antara haiwan X dan haiwan Y dari segi jenis persenyawaan dan
cara pembiakan.
State the differences between animal X and animal Y in terms of the type of
fertilization and the method of reproduction.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
[2 markah/2marks]
Jumlah
8
3. Rajah menunjukkan peringkat-peringkat sistem penulenan air.
Diagram shows stages in water purification system.
(a) Namakan dan nyatakan fungsi bahan yang ditambah ke dalam tangki penggumpalan.
Name and state the function of substances added to the coagulation tank.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
[2 markah / 2 marks]
18
(b) Ali merupakan seorang penyelia kolam renang di sebuah hotel. Nyatakan tindakan
yang perlu dilakukan oleh Ali bagi memastikan kolam renang tersebut bebas daripada
mikroorganisma.
Ali is a swimming pool supervisor at a hotel. State the actions that Ali needs to take to
ensure that the swimming pool is free from microorganisms.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
[3 markah / 3 marks]
(c) Sophia bersama beberapa orang rakannya sedang mendaki gunung. Mereka singgah
berehat di tepi sebatang sungai. Rajah menunjukkan dua kaedah yang digunakan
Sophia untuk mendapatkan air yang bersih dan selamat diminum.
Sophia and some of her friends are climbing a mountain. They stopped to rest by the
side of a river. The diagram shows two methods used by Sophia to obtain clean and
safe drinking water.
K L
Similarity: ___________________________________________________________
Differences:____________________________________________________________
______________________________________________________________________
______________________________________________________________________
[3 markah/3marks]
19
(ii) Jika Sophia menggunakan kaedah penyulingan, adakah air sungai tersebut sesuai
untuk diminum? Jelaskan.
If Sophia use the distillation method, is the river water suitable for drinking? Explain.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
[2 markah/2marks]
Jumlah
(b) Berdasarkan rajah di atas, berikan dua kawasan yang boleh menghasilkan fenomena
yang dinyatakan pada 1(a).
Based on the diagram above, give two places that can produce the phenomenon as
stated in 5(a).
______________________________________________________________________
______________________________________________________________________
[2 markah/2mark]
(c) Siti ingin mengetahui jantina anak yang sedang dikandungnya. Jelaskan tindakan yang
diambil oleh doktor untuk menentukan status jantina anak Siti.
Siti wants to know the gender of the child she is carrying. State the actions taken by the
doctor to determine the gender status of Siti's child.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
[3 markah/3marks]
20
(d) Rajah di bawah menunjukkan dua kaedah yang digunakan nelayan untuk menangkap
ikan.
The diagram below shows two methods that fishermen use to catch fish.
P Q
Banding bezakan kaedah P dan Q.
Compare and contrast between method P and Q.
Persamaan:____________________________________________________________
Perbezaan:____________________________________________________________
______________________________________________________________________
______________________________________________________________________
[3 markah/3marks]
(e) Sonogram ialah sejenis pemeriksaan pengimejan yang menggunakan gelombang bunyi
frekuensi yang tinggi. Wajarkan penggunaan teknologi ini dalam bidang perubatan.
Sonogram is a type of imaging examination that uses high-frequency sound. Justify the
use of this technology in the medical field.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
[3 markah/3marks]
Jumlah
12
21
5 (a) Rajah 8 menunjukkan penggunaan kren electromagnet untuk mengasingkan
serpihan besi daripada sisa buangan.
Diagram 8 shows the use of electromagnetic cranes to separate the iron pieces
from the scrap.
Situasi A Situasi B
Situation A Situation B
…...................................................................................................................
[1 markah/ mark]
(ii) Apakah inferens yang boleh dibuat berdasarkan Situasi A dan Situasi B
dalam Rajah 8.1?
What inference can be made based on Situation A and Situation B in
Diagram 8.1?
…...................................................................................................................
[1 markah/ mark]
22
(iii) Nyatakan satu hipotesis berdasarkan pemerhatian anda dalam Rajah 8.1.
State one hypothesis based on your observation in Diagram 8.1.
…...................................................................................................................
[1 markah/ mark]
(b) Seorang murid melakukan eksperimen untuk mengkaji hubungan antara arus
yang mengalir dengan kekuatan medan magnet.
A student carry out an experiment to study the relationship between the current
that flows and strength of the magnetic field.
Langkah 4 : Ulang langkah 1 hingga 3 dengan menggunakan arus 1.0 A, 1.5 A, dan 2.0
A. Rekodkan pemerhatian anda.
Step 4 : Repeat steps 1 to 5 using 1.0 A, 1.5 A and 2.0 A of current. Record your
observations
23
(c) Nyatakan hubungan antara bacaan ammeter dengan bilangan klip kertas yang
tertarik kepada rod besi?
State the relationship between the Ammeter reading and number of paper clips
that attracted to iron rod?
……………………………………………………………………………...………………………………………………………
………………………………………………………………………………………………………………………………………
[1 markah/marks]
Pembolehubah dimalarkan
Constant variable
[3 markah/ marks]
(e) Berdasarkan graf di (c), ramalkan bilangan klip kertas yang akan tertarik kepada
rod besi jika bacaan ammeter ialah 2.5 A.
Based on the graph in (c), predict the number of paper clips attracted to the iron
rod if the ammeter reading is 2.5 A.
………………………………………………………………………………………………………………………………………
[1 markah/marks]
24