Pmr Science Paper 1 Set 3

55/1 Science Paper 1 July 2006 1 hour

Set 3 JABATAN PELAJARAN NEGERI PERAK _______________________ PENILAIAN MENENGAH RENDAH 2006 Learning To Score

SCIENCE Paper 1 1 hour

DO NOT OPEN THE QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO

1. This question paper consists of 40 questions. 2. Answer all questions. 3. Answer each question by blackening the correct space on the answer sheet. 4. Blacken only one space for each question. 5. If you wish to change your answer, erase the blackened mark that you have made. Then blacken the space for your new answer. 6. The diagrams in the questions provided are not drawn to scale unless stated. 7. You may use a non-programmable scientific calculator.

This question paper consists 14 printed pages.

___________________________________________________Learning To Score 2006 Answer all questions 1

Figure shows a bottle containing concentrated sodium hydroxide solution.

Sodium Hydroxide Concentration

Y Which symbol below should be used to label Y?

2

A

C

B

D

The human cell that protects the body from infections is ………… A C

B

Unit Kurikulum Jabatan Pelajaran Perak

D

2

___________________________________________________Learning To Score 2006 3

The figure shows a microscope.

X

What is the function of X? A B C D 4

To see the image To magnify the image To justify the specimen To diminish the specimen

The figure shows a wooden block which has mass 0.53g.

2.5 cm

3.0 cm

0.5 cm

Calculate the density of the wooden block? A B C D 5

 Dull  Brittle  Can conduct electricity Which of the following has the properties listed as above? A B C D

6

3.75g/cm3 5.47g/cm3 0.41g/cm3 7.08g/cm3

Iron Sulphur Chlorine Graphite

What is the cause of green house effect? A B C D

The lack of water resources The reduction of oxygen in the air The melting of ice at the North pole and South Pole The increase of in amount of carbon dioxide in the air

Unit Kurikulum Jabatan Pelajaran Perak

3

___________________________________________________Learning To Score 2006 7

Figure shows the source of solar energy.

Which of the following is not true? A B C D 8

It is costly It is renewable It can be used up It does not pollute air

Figure shows the movement of a pendulum from P to R and then back to P through Q.

R

P Q

Which of the following is true about the movement of the pendulum? I II III

The potential energy at Q is the minimum The kinetic energy at P and R is maximum The total energy at P, Q and R are the same

A B C D

I only I and II only II and III only I, II and III

Unit Kurikulum Jabatan Pelajaran Perak

4

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The figure shows a metal ball and a ring. It is observed that the ball expands after being heated up for 5 minutes. Ring

Metal

Heated

What is the inference can you make from the observation? A B C D

the particles become bigger the shape of the particles has changed the number of particles has increased the distance between the particles becomes further from one another

10

The figure shows an alveolus which surrounded by blood capillaries. The oxygen in the alveolus moves to the surrounding blood capillaries.

alveolus Blood capillaries

What process is involved? A B C D 11

diffusion circulation exhalation transportation

Which of the following diagrams shows long-sightedness? A

B

Unit Kurikulum Jabatan Pelajaran Perak

5

___________________________________________________Learning To Score 2006 C

D

12

The table shows the parts of human ear and their functions. Part X Y

Function Detects vibration and convert them into nerve impulses Directs the sound waves to the ear drum

Which of the following is true for X and Y?

A B C D 13

Ear drum Cochlea Cochlea Auditory nerve

Ear pinna Ear canal Ear pinna Ear canal

Figure shows two types of food in Ahmad’s diet.

If Ahmad’s diet lacks the above class of food, he will suffer from….. A B C D

Goiter Scurvy Anaemia Beri-beri

Unit Kurikulum Jabatan Pelajaran Perak

6

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Figure shows the set up of an experiment to show the absorption of digested foods through the Visking tube.

Distilled water Visking tube Glucose solution + Starch solution Which types of foods can be found in the water after 30 minutes? A B C D 15

Starch only Glucose only Glucose and starch No absorption occurs

Figure shows the classification of animals. Animals

Vertebrates

Bird

Monkey

Invertebrates

P

Fish

Q

What are the similarities between the animals P and Q? A B C D 16

Lay eggs and cold-blooded Give birth and cold-blooded Have dry scales and feathers Have scales and warm-blooded

Figure shows the distribution of three species of organisms S, O and X in a habitat. X

X O

X S O

O X X

X S

X X X X

O S O X

Which of the following is the correct food chain relating organisms S, O and X? A B C D

S→O→X O→S→X X→O→S X→S→O

Unit Kurikulum Jabatan Pelajaran Perak

7

___________________________________________________Learning To Score 2006 17

Figure shows the process of electrolysis.

Water + Dilute acid

Which of the following gases are collected in the test tubes P and Q?

A B C D 18

Q Hydrogen Oxygen Oxygen Carbon dioxide

Which of the following will affect the rate of evaporation of water? I Air humidity II Surrounding temperature III Exposed surface area of water A B C D

19

P Oxygen Carbon dioxide Hydrogen Hydrogen

I and II only I and III only II and III only I, II and III

Figure shows a balloon inside a flask. pump

balloon

What will happen to the pressure in the flask and volume of the balloon if air is pumped out of the flask?

A B C D

Pressure Increase Increase Decrease Decrease

Unit Kurikulum Jabatan Pelajaran Perak

Volume Increase Increase Increase Decrease 8

___________________________________________________Learning To Score 2006 20

An engine with a power of 1800W runs for 30 seconds. The total amount of work done is. A B C D

18 J 60 J 1830 J 54000J

21

Which of the following characteristic helps to support birds? A Air sacs B Exoskeleton C Hollow bones D Hydrostatic skeleton

22

Figure shows a rectangle. A B

C

D The point of equilibrium is at……. 23

24

Raju is asked to make the bicycle of his sister more stable. Which of the following steps would he take? I II III

Lower the seat of the bicycle Increase the surface area of the bicycle’s seat Add two small wheels to the back wheel of the bicycle

A B C D

I and II only. I and III only. II and III only. I, II and III.

Figure shows a lever system. 50 cm Force 100 N 10 cm

Fulcrum

Load

Calculate the maximum load that can be lifted by the force A 100 N B 200 N C 400 N D 500 N Unit Kurikulum Jabatan Pelajaran Perak

9

___________________________________________________Learning To Score 2006 25

Figure shows a lever which is in equilibrium. The distance between the scales is the same. M

N

O

P

100 N Load 200 N

Which of the points marked M, N, O and P serves as the fulcrum? A B C D 26

M N O P

The diagram shows part of the human respiratory system.

X X What happens if the structure X relaxes and moves upwards? A B C D 27

The air forces out of the lung The volume of thoracic cavity increase The rib cage moves upwards and outwards The air pressure in the lungs is less than the atmospheric pressure

The table shows air pollutants and their effects on human respiratory system. Which is not true?

A B C D

Air pollutants Carbon monoxide Sulphur dioxide Nicotine Haze

Unit Kurikulum Jabatan Pelajaran Perak

Effect Increases the oxygen supply to our body cells Irritates the air passage of the respiratory system Causes addiction to smoking Damages the lungs

10

___________________________________________________Learning To Score 2006 28

The figure shows the structure of a human heart.

A D

B

C Which part of the heart contains deoxygenated blood? 29

A balsam plant was put into the beaker of coloured water for an hour. A crosssectional cut of the root and the stem of the plant are observed.

Balsam plant

Coloured water

The parts that are seen coloured in the root and stem are ……… A xylem tissues B phloem tissues C cambium tissues D epidermis tissues 30

The figure shows an excretory organ.

What are the waste products produced by this organ? A B C D

Water, oxygen and toxin Carbon dioxide and water Water, mineral salts and urea Sugar, carbon dioxide and water

Unit Kurikulum Jabatan Pelajaran Perak

11

___________________________________________________Learning To Score 2006 31

The figure shows a human sperm cell.

X

What is the function of X? A B C D

32

It protects the sperm. It contains genetic materials. It supplies food to the sperm. It provides the energy for the sperm to move

The figure shows the female reproductive system.

A B D C Which of the following positions, A, B, C and D, does implantation of the embryo take place? 33

The table shows the characteristics of a mineral.   

Good heat conductor inactive exists as natural element in Earths’ crust

The mineral is ………….. A B C D

zinc silver silicon aluminium

Unit Kurikulum Jabatan Pelajaran Perak

12

___________________________________________________Learning To Score 2006 34

Figure shows a mixture of iron and sulphur is heated. Sulphur + Iron

Which of the following equations represents the reaction that occurs?

35

A

Iron + Sulphur

heat

iron oxide

B

Iron + Sulphur

heat

iron sulphate

C

Iron + Sulphur

heat

iron silicate

D

Iron + Sulphur

heat

iron sulphide

The figure shows a complete circuit

3A

4Ù

2Ù 4Ù Calculate the voltage of the dry cells. A B C D

36

7.5V 9.0V 10.0V 12.0V

Which of the following is true about a step-down transformer? A B C D

It It It It

has no wire on secondary coil. has more turns of wire on the primary coil. has more turns of wire on the secondary coil. has the same number of turns of wire on both coils.

Unit Kurikulum Jabatan Pelajaran Perak

13

___________________________________________________Learning To Score 2006 36

Which of the following is true about the component of an electrical circuit and its symbol? Electrical Component

Symbol A

Bulb B .

Resistor

C Voltmeter D Dry cell

37

Which of the following is true about a step-down transformer? A B C D

38

has no wire on secondary coil. has more turns of wire on the primary coil. has more turns of wire on the secondary coil. has the same number of turns of wire on both coils.

A 400 watts electrical fan is used for 5 hour. What is the cost of the electrical Energy used if the cost per unit is RM0.30? A B C D

39

It It It It

RM0.60 RM6.00 RM60.00 RM600.00

The information below describes the structure of the Sun.

  

About 10 000 km thick It can be seen during a solar eclipse Gives off a reddish light

The information is about the ………. A B C D 40

corona photosphere chromosphere core of the sun

Which of the following is the correct sequence for the death of a super-large star? A B C D

Super-large Super-large Super-large Red supergiant

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Red supergiant Supernova Red supergiant Super large

Supernova Black hole Black hole Supernova

Black hole Red supergiant Supernova Black hole

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