science form four malaysia

SEKOLAH MENENGAH KEBANGSAAN (LELAKI) METHODISTPEPERIKSAAN AKHIR TAHUN 2013

TINGKATAN 4Kod Kertas : 1511/1 Penyedia : Pn. A. SudarshiniMata Pelajaran : Sains Penyemak : En. Yeoh Soon KhuanMasa : 1 jam 15 minit Disahkan : Pn. Khoo Li LengBil. Calon : 147

Answer all the questions below. ( 50 marks )

1 What is the basic unit of the nervous system ?

A axon B neurone C dendrite D myelin sheath

2 Diagram 1 shows a typical structure of a motor neurone.DIAGRAM 1

Which of the following pairs is correct?

Structure FunctionA J Transmitting nerve impulses towards the cell bodyB K Transmitting nerve impulses away from the cell bodyC L Decreasing the rate of transmission of nerve impulses.D M Releasing chemical substances to stimulate the motor system.

3 Diagram 2 shows parts of human nervous system. Which part controls body balance ?

DIAGRAM 2

1

A

B

C

D

Receptors brain efectors

4 Diagram 3 shows the flow of impulse.

DIAGRAM 3

Which of the following action is shown by the flow of impulse in diagram 3 ?

A heartbeat B reading C vomiting D sneezing

5 Diagram 4 shows the position of the endocrine glands in the human body.Which of the glands labelled as A, B, C and D produces a hormone that controls the glucose level ?

DIAGRAM 4

6 Which of the following results from increased secretion of adrenaline?

A Decreased sweating B Decreased heart rateC Decreased breathing rate D Increased supply of glucose in the blood

7 Diagram 5 shows the position of the endocrine glands in the human body.Which of the glands labelled as A, B, C and D produces a hormone that controls body growth ?

DIAGRAM 5

8 Diagram 6 shows a stage of mitosis.

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Tt Tt

T tTt

Parents

Gametes

Offspring

DIAGRAM 6

What will be the number of chromosomes in each daughter cell when the process of mitosis is complete?

A Two B Three C Six D Twelve

9 In which part of the plant does meiosis occur?

A Petal B Anther C Root tip D Shoot tip

10 Which of the following shows the chromosomes present in the female liver cells?

A 22 + X B 22 + YC 44 + XX D 44 + XY

11 Diagram 7 shows the inheritance of height in pea plants.

DIAGRAM 7

What is the expected ratio of the cross?

A 1 tall : 1 dwarf B 2 tall : 1 dwarf C 1 tall : 3 dwarf D 3 tall : 1 dwarf

12 Diagram 8 shows sex determination in human.

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KeyT – Tall dominant gene t – Dwarf recessive gene

22 + X

Parents

Gametes

Offspring

44 + XY 44 + XX

Mother

P 22 + X

Q 44 + XX 44 + XY 44 + XY

Father

22 + X

Diagram 8

Which of the following are chromosomes found in P and Q?

P QA 22 + Y 44 + XYB 22 + Y 44 + XXC 22 + X 44 + XXD 22 + X 44 + XY

13 Which of the following is true about non-identical twins?

A Both foetuses share the same placenta.B They always have the same gender.C The zygote formed after fertilisation splits into two. D Two ova are fertilized by two sperms.

14 Diagram 9 shows the chromosomes found in a baby skin cells.

Diagram 9Which of the following genetic diseases is the baby suffering from?

A Down’s syndrome B Albinism C Colour blindness D Turner’s syndrome

15 Which of the following A, B, C or D, represents boiling process ?

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16 Diagram 10 shows the structure of atom X .

Diagram 10

What is the proton number, the nucleon number and the number of electron ?

Proton number Nucleon numberThe number of electron

A 3 3 4B 3 4 3C 4 10 3D 3 7 3

17 The table 1 shows sub-atoms of four elements.

ElementsNumber of protons

Number of neutrons

Number of electrons

Nucleon number

P 6 6 6 12Q 6 8 6 14R 7 7 7 14S 8 8 8 16

TABLE 1

Which of the pairs are isotopes ?

A P and Q B Q and RC R and S D Q and S

18 Diagram 11 shows an incomplete Periodic Table.

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ElectronProton

Neutron

Keys

1 18 1 2 13 14 15 16 172 3 3 4 5 6 7 8 9 10 11 124 X

DIAGRAM 11What is X ?

A Non-metal B Noble gasC Transition element D Metal

19 The table 2 shows some physical properties of elements X, Y and Z.

ElementMelting point (0C)

Electrical conductivity in

Solid state Molten state

X 115 Poor PoorY 800 Poor GoodZ 2 100 Good Good

TABLE 2

What are substances X, Y and Z ?

X Y Z A Molecule Atom Ion B Molecule Ion Atom C Atom Molecule Ion D Ion Atom Molecule

20 Which of the following apparatus set-up shows the deflection of Ammeter needle ?

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PE

RIO

DS

GROUPS

Sugar

Lead(II) bromide

Lead powder Sulphur

A B

C D

21 Liquid M has boiling points of 78 0C and liquid N has boiling point of 1000C. How to obtain liquid M from the mixture of the two liquids?

A Filtration B CrystallizationC Distillation D Evaporation

22 Which of the following example is involved in a chemical change ?

A Combustion of petrol in a carB Evaporation of water on a hot dayC Sublimation of iodine crystals to iodine vapourD Crystallisation of a salt from a saturated salt solution

23 Diagram 12 shows a reaction between magnesium and dilute hydrochloric acid.

DIAGRAM 12What type of reaction is involved in this experiment ?

A Oxidation B ExothermicC Endothermic D Neutralisation

24 The following information shows about metals P, Q and R.

Which is the correct ascending order of reactivity of metals P, Q and R ?

A P,Q, R B Q,R,PC R,Q,P D Q,P,R

25 Diagram 13 shows part of reactivity series of metals. Which of the following A, B, C or D is the position of carbon?

Diagram 13

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Metal P reacts vigorously with cold water Metal Q does not reacts with cold water or team Metal R reacts with steam but not with cold water

Magnesium Aluminium Zinc Iron TinA B C D

Dilute hydrochloric acid

Magnesium

Beginning of the experiment

Experiment in process

26 Diagram 14 shows a blast furnace used for extracting a metal.

What are substances P and Q?

P Q A Limestone Molten iron

B Limestone Molten tin

C Carbon Molten iron

D Carbon Molten tin

27 Diagram 15 shows an electroplating of an iron ring.

Diagram 15

What is solution X ?

A Silver nitrate B Iron (II) sulphate C Aluminium nitrate D Copper (II) sulphate

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Tin (IV) oxide + substance P

DIAGRAM 14

Iron ringSilver

Solution X

28 What type of battery is used in a handphone ?

A Alkaline battery B Acid-lead batteryC Nickel-cadmium battery D Silver oxide battery

29 Diagram 16 shows an experiment to study a process in green plants.

DIAGRAM 16

What is the condition for the above observation can only occur?

A Some dilute sulphuric acid is added into the waterB the set-up apparatus is placed in the darkC the water weeds are replaced by a fishD the set-up apparatus is placed under sunlight

30 The nucleus of a radioactive substance produce nuclear energy in a process called

A electrolysis B radioactive decayC nuclear fission D exothermic

31 The radioisotope used in archaeology is

A cobalt-60 B uranium-235C carbon-14 D oxygen-18

32 What is radioactive decay ?

A the nuclear fission of an atom.B the loss of electrons from an atom. C the increase in the nucleon number of an atom.D the process of unstable nucleus breaking up into a more stable nucleus.

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33 Diagram17 shows a part of the fission process of a radioactive substance.

DIAGRAM 17

What is particle K ?

A proton B electron C neutron D krypton atom

34 The table 3 shows the penetration power of nuclear radiation.

Radiation Can be blocked with

P AluminiumQ PaperR Lead

TABLE 3

Arrange them in a sequence showing reducing penetration power.

A R, P, Q B Q, R, PC P, Q, R D R, Q, P

35 Radioisotope X is used to study the process of photosynthesis in a plant. What is X?

A Iodine-131 B Carbon-12C Carbon-14 D Cobalt-60

36 What is the main usage of nuclear energy in industries ?

A preserve food B disinfect germsC generate electricity D sterile equipment

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Particle K

Particle K

Particle K

Particle K

NucleusUranium - 235

37 Diagram 18 shows that letter L is placed in front of a plane mirror.

DIAGRAM 18

Which of the following shows the image formed at P ?

C A

B D

38 Diagram 19 shows two flag posts M and N respectively at distances of 10 m and 4 m from a plane mirror.

DIAGRAM 19

What is the distance of the image of flag post M from the position of N?

A 4 m B 10 mC 14 m D 20 m

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P

Plane mirror

Plane mirror

39 Diagram 20 shows a magnifying glass .

DIAGRAM 20

What is the distance between the lens and the word SAINS so that the image formed will be as above

A Same as the lens focal length B Longer than the lens focal lengthC Shorter than the lens focal length D Twice the lens focal length

40 Diagram 21 shows a beam of light passing through a prism.

DIAGRAM 21

What is the process happen at M ?

A Reflection B DispersionC Scattering D Splitting

41 What is the process that caused the blue sky phenomena during mid day?

A Light reflection B Light refractionC Light dispersion D Light scattering

42 Diagram 22 shows two spot light which produce red light and light Y.

DIAGRAM 22

What is the colour of light Y ?

A Blue B GreenC Yellow D Cyan

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Red

Purple

M

White light

Magenta

Red lightLight Y

S A I N S

43 Diagram 23 shows a red filter and filter Q that are placed in front of a white light.

DIAGRAM 23

What is the colour of filter Q?

A Cyan B BlueC Yellow D Green

44 Diagram 24 shows an experiment to study the subtraction of coloured lights

Green leaf

DIAGRAM 24

What is the colour of the leaf that will be seen by the observer?

A Green B BlackC Red D Yellow

45 Diagram 25 shows the arrangement of atoms in a substance.

Foreign atom

DIAGRAM 25Which of the following substance has the same arrangement of atoms as in figure ?

A steel B ironC copper D aluminium

46 What is brass made of?

A lead and copper. B tin and lead.C copper and zinc D copper and carbon

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ObserverYellow light

Black box

Red filter Filter Q

White lightRed

47 What is the purpose of adding carbon to iron in steel ?

A lower the melting point of steelB make the metal even softerC prevent the flow of electric current among the atomsD prevent the iron atoms from sliding among one another.

48 Which of the following statements is characteristic of ammonia?

A Acidic gas B Not soluble in waterC Have a sweet smell D Contains nitrogen and hydrogen.

49 Which of the following conditions is caused by excessive exposure to radiation?

A Weak bone B TuberculosisC Night blindness D Gene mutation

50 What causes acid rain ?

A ozone B carbon monoxideC sulphur dioxide D carbon dioxide

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