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SULIT 4561/1

PEJABAT PELAJARAN DAERAH

KLANGUNIT SAINS DAN MATEMATIK

LATIH TUBI BERFOKUS [ Set 1 ]SIJIL PELAJARAN MALAYSIA 2009

4561/1

SAINS TAMBAHANKertas 1

14

1 jam Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1. Kertas soalan ini mengandungi 40 soalan

2. Jawab semua soalan

3. Buku sifir matematik disediakan oleh pelajar sendiri

4. Kalkulator boleh digunakan.

Kertas soalan ini mengandungi 13 halaman bercetak.

4561/1 Lihat Sebelah

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1 Which of the following prefixes is in the ascending order?

A centi, deci, micro, nanoB nano, centi, micro, milli

C kilo, mega, giga, tera

D milli, micro, nano, pico

2 Which of the following conversion of units is correct?

A 0.5 m = 500 mmB 4.2 m = 42 mm

C 4 m = 400 mm

D 70 m = 7000 m

3 A ball of mass 0.3 kg is released from rest at a height of 2 m. It hits the ground

and rebounds. Calculate the amount of energy.[E = mgh ; g = 10 ms-2]

A 0.3 J

B 0.6 JC 3.0 J

D 6.0 J

4 The S.I. unit for heat is

A watt

B jouleC kelvin

D candela

5 What is the fuel used in a fission reaction?

A A nucleus

B A neutronC The uranium-235 nucleus

D Krypton, barium and 3 neutrons

6 Which of the following elements are in Group 17 of the Periodic Table of elements?

A Argon and heliumB Iodine and chlorine

C Potassium and sodium

D Nitrogen and phosphorus


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7 What happens when one sodium atom reacts with one chlorine atom?

A The sodium atom receives one electron from a chlorine atom.

B The sodium atom shares one electron with a chlorine atom.

C The sodium atom releases one electron to a chlorine atom.D The sodium atom receives one proton from a chlorine atom.

8 How many atoms are there in 0.25 moles of sodium, Na?

[Avogadro’s number, NA = 6 x 1023]

A 6.25 x 1023

B 2.5 x 1022

C 1.5 x 1023

D 0.25 x 1022

9 In which part of the human respiratory system does the exchange of oxygen and

carbon dioxide take place?

A Alveolus

B Bronchus

C Bronchiole

D Trachea

10 The statements below show the eating habits of a person.

The eating habits above can prevent

A arteriosclerosis

B kidney stones

C hypertension

D stroke

11 Excess cholesterol in the human body would

A reduce blood pressure

B increase sugar levels in the blood

C reduce lumen size of blood vesselsD increase uric acid levels in the blood


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• Drinking plenty of water

• Eating more vegetables and fruit

• Taking less seafood



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12 What are the ways to maintain a healthy digestive system?

I Good eating habitsII Cut down on starchy food

III Reduce intake of fatty food

IV Avoid junk food

A I and II only

B III and IV only

C I, II and IV onlyD I, II, III and IV

13 The table below shows the calendars of the month of June. A 16 year old girl’s

menstruation cycle started on 14 June.

Week 1 Week 2 Week 3 Week 4 Week 5

Sun 1 8 15 22 29

Mon 2 9 16 23 30

Tue 3 10 17 24

Wed 4 11 18 25

Thurs 5 12 19 26

Fri 6 13 20 27

Sat 7 14 21 28

When is the ovulation most likely to occur?

A 15 th JuneB 12 th July

C 28 th June

D 28 th July

14 Which is not the effect of stress factors on the ecosystem?

A The alga bloom phenomenon

B Unbalanced food web

C Extinction of speciesD More balanced food web

15 Which of the following is a function served by catchment areas?

A Provide us with fresh water

B As a fresh water storage, releasing it when needed

C Help the recycle process of water in earth ecosystem


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D Ensure that we have clean and clear water by preventing soil erosion and

flooding

16 Which of the following are the methods used to preserve and conserve an

ecosystem?

I Legally protecting endangered species

II Having breeding programmers for endangered speciesIIII Introducing sperm banks and seed stores

IV Encouraging more urban development and deforestation

A I and II onlyB II and III only

C I , II and III only

D I , II , III and IV

17 Which of the following is not a characteristic of ecological succession in anecosystem?

A Communities gradually change from one type to another.

B Some species become less abundant over time.C It occurs suddenly in an area.

D It occurs gradually in stages.

18 Which of the following is not an example of a balanced ecosystem?

A Pond weeds providing oxygen and rocks providing shelter for fishes in a

pond.

B Birds feeding on worms and cows eating grass in a terrestrial ecosystem.C Plankton providing food for fishes in the sea.

D A tiger eating a deer in a forest.


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19 The diagram below shows a worker pushing a trolley.

What is the horizontal component force, F x, if the force exerted by the worker is50 N?

[Fx = F cos θ]

A 25 N

B 50 N

C 100 ND 3000N

20 Which of these is the definition of reduction?

A Gain in oxygen.B Gain in electrons.C Loss of protons.

D Increase in proton number.

21 Which of the lists of petroleum fractions below is arranged in order of increasing boiling

points?

A Lubricating oil, petrol, kerosene, diesel.

B Petrol, kerosene, diesel, lubricating oil.

C Petrol, diesel, kerosene, lubricating oil.

D Diesel, lubricating oil, petrol, kerosene.

22 Which of the following increases the oscillation period of a simple pendulum?

A Increasing the length of the pendulumB Increasing the mass of the pendulum bob

C Carrying out the experiment in a vacuum

D Increasing the oscillation amplitude of the pendulum


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23 A science quiz competition is broadcast live by a radio station at the frequency of

1.8 x 105Hz.

Given that the velocity of a wave = 3 x 108

ms-1

, v = fλ, what is the wavelengthreceived by the radio receiver?

A 0.6 x 103 mB 1.2 x 103 m

C 1.7 x 103 m

D 5.4 x 103 m

24 The figure above shows the pattern of a plane wave moving from X area to Y in a

ripple tank. Which of the following statements is true?

A The density in Y area is higher

B The velocity in Y area is higher

C The water in Y area is more shallowD The water wave frequency is higher in X area

25 Which of the following pairs of situation and wave phenomenon are true?

Situation Wave phenomenon

I Sea waves hitting the embankment Reflection

II Sea waves bending at the corner of the

embankment

Refraction

III Sea waves overlapping one another Interference

IV Sea waves propagating from deep toshallow areas

Diffraction

A I and III only

B II and IV only

C II, III and IV only

D I, II, III, and IV


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X

Y



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26 The figure above shows a plane wave being reflected by a smooth surface. Which

statement is not true?

A Wavelength is the same after being reflected.B The incident wave is always perpendicular to the reflected wave.

C The velocity of the incident wave is the same with the reflected wave.

D The frequency of the incident wave is bigger than the frequency of the

reflected wave.

27 Which of the following is a longitudinal wave?

A Water wave

B Sound wave

C Radio waveD Light wave

28 Which of the following statements is not true about electromagnetic waves?

A They are transverse waves.

B They move in a vacuum.C They move faster than light.

D They are a combination of electrical field and magnetic field vibrations.

29 The displacement –time graph of a wave motion is as shown in the figure below.


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i r

Displacement/m

0.2

0

-0.23 time/s



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What is the wave frequency?

A 0.2 HzB 0.5 Hz

C 0.3 Hz

D 2.0 Hz

30 Jane blew over across the top of an empty bottle and she heard a loud sound.

What causes the loud sound?

A Diffraction

B Resonance

C InterferenceD Superposition

31 How can the pitch of the sound emitted by a string of a guitar be increased?

A Loosen the string

B Tightened the stringC Strum harder on the string

D Strum lighter on the string

32 The figure below shows a section of the electromagnetic spectrum.

P Light Q X-Ray


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f = 1T



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P and Q represent

P Q

A Infra red Ultra violet

B Radio wave Infra red

C Infra red MicrowaveD Ultra violet Infra red

33 The time taken for the bob of a simple pendulum to move from P to Q, then fromQ back to P again is 0.8 s.

What s the frequency of the simple pendulum?

A 0.80 Hz

B 1.25 HzC 2.50 Hz

D 5.00 Hz

34 The sound wave from a violin has a higher pitch than from a guitar. The soundfrom the guitar is louder than that of a violin. The sound from which instrument

has the higher amplitude and which has the higher frequency?

Higher amplitude Higher frequency

A Violin Guitar

B Violin Violin

C Guitar Violin

D Guitar Guitar


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f = 1

T

QP

PyruvateYeast

X

carbon dioxide

water



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35 Fermentation involves the respiration process where carbohydrate (glucose) is

broken down to release energy. The figure above shows the fermentation processof alcohol. Name X and the type of respiration process involved in the figure

above.

X Type of respiration

process

A Ethanol Aerobic

B Ethanol Anaerobic

C Lactic acid Aerobic

D Lactic acid Anaerobic

36 Yoghurt is a product of the fermentation process. Table below shows the

stages of yoghurt production in a mixed order.

Stage Process

P Pasteurised milk is heat-treated (at 90OC for 20 minutes) to coagulate the

milk protein

Q The mixture is incubated at about 46OC for up to 6 hours

R The mixture is cooled at 50OC

S The milk is homogenized, cooled and innoculated with a starter culture

of the bacteria, Lactobasillus bulgaricus and Streptococcus

thermophilus

Arrange the stages in the correct order.

A P→Q→R →S

B P→S→Q→R

C S→P→R →Q

D Q→R →S→P

37 Plant tissue culture is a specialized technology used for plant propagation in order

to produce high quality crops. Which of the statements below shows the

advantages of using plant tissue culture?


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I All new plants inherit the same desirable characteristics, suitable for

commercial planting.

II All plants have the same genetic make-up therefore they are vulnerableto the same type of diseases or pests.

III New plants are uniform in size and shape, and are genetically identical.

V Plants can be produced all year round.

A I only

B I and III onlyC I, III and IV only

D I, II, III and IV

38 The cloning process is

A the growth of cells or tissues which are separated from living organisms in

a suitable medium which contains nutrients and oxygen.B producing an organism which is derived from a single cell of its parents

and is genetically identical to them.C transferring DNA segments that carry genetic information from the DNA

of a certain organism into the DNA of a target organism.

D the breaking down of carbohydrate (glucose) by yeast to produce ethanol

and carbon dioxide without oxygen.

39 The development in genetic engineering and biotechnology increases the ability

of humans to

I shorten fruit production period

II increase agricultural productionIII produce the crop that is herbicide resistant

IV reduce the number of pests that destroy crops

A I only

B II and III only

C I, II and III only

D I, II, III and IV


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40 Name the process shown above.

A Cloning

B Hydroponics

C Tissue cultureD Direct seeding

END OF QUESTION PAPER


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Original plantTissue from original plant in a nutrient

medium

New plantYoung plant

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