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PPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMI

PHYSICS

FORM 4

MODULE 3

PPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMI

FORCES AND PRESSURE

MINISTRY OF EDUCATION MALAYSIA


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MODULE 3: FORCES AND PRESSURE

Arahan:

1. Modul ini mengandungitiga puluh soalan. Semua soalan adalah dalam bahasa

Inggeris.

2. Modul merangkumienam konstruk yang diuji

K1-Memahami soalan dalam Bahasa InggerisK3-Memahami istilah sains dalam Bahasa InggerisK5-Menguasai konstruk pengetahuanK6-Menguasai konstruk kefahaman

K7-Menguasai konstruk kemahiranK8-Mengeluarkan maklumat/idea dalam Bahasa Inggeris

3. Murid hendaklah menulis maklumat diri dalam kertas jawapan objektif disediakan.Murid juga perlu memastikan maklumat konstruk, nombor soalan dan jumlah soalanseperti yang dibaca oleh guru di dalam ruangan disediakan dalam kertas jawapanobjektif sebelum ujian.

4. Bagi soalan objektif, anda perlu menandakan jawapan dengan menghitamkanpilihan jawapanpada pilihan jawapanA , B , CatauDpada kertas jawapan objektif.

Contoh:

Antara berikut, yang manakah haiwan?

A. Pokok B. Kambing C. Kereta D. Pen

5. Untuk soalan subjektif, jawapan hendaklah ditulis pada kertas berasingan yangdisediakan oleh guru.

6. Jawab semua soalan.

Modul ini mengandungi22halaman bercetak

DA B C E


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1. Pressure is force divided by area.

What is pressure?

A. force x area.

B. force_area

C. area_force

D. 1____force x area

2. Liquid pressure increases with the depth of the liquid.

When the depth of the liquid is greater, the liquid pressure is

A. higher.B. ower.C. unchanged.


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3. The figure shows information contained in a brochure.

What is the atmospheric pressure at an altitude of 11 000 m?

A. 5 600 m

B. 11 000 mC. 25 000 PaD. 50 000 Pa

An aircraft traveling at analtitude of 11 000 m willexperience an atmosphericpressure of 25 000 Pa

At 5 600 m above sea level,the atmospheric pressure isabout 50 000 Pa


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4. A balloon is filled with 0.22 m3

of helium gas and its mass is 40 g. Thedensity of the helium gas is 0.18 kg m-3. The balloon rises up to a height of10 m.

What is the density of the helium gas?

A. 40 gB. 10 mC. 0.22 m3D. 0.18 kg m-3

5. The figure shows the cross-sectional area of an aeroplane wing.

The airflow above the aeroplane wing is faster than the airflow below it.

The velocity of airflow above the aeroplane wing is ________________ thevelocity of the airflow below it.

A. equal toB. lower thanC. higher than

aeroplane wing

air flow


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6.

Choose the terminology that best relates to the situation shown in each of thefigures.

A. DensityB. Pressure

C. Buoyant forceD. Atmospheric pressure

7.

A. TemperatureB. Buoyant forceC. Refractive indexD. Specific heat capacity


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8.

A. DragB. PowerC. Lifting forceD. Air resistance

9.

A. Drag

B. TemperatureC. Buoyant forceD. Atmospheric pressure

water

cardboard

initial positionof the paper


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10.

A. DragB. Lifting forceC. TemperatureD. Liquid pressure

11. The figure shows a coconut floating in the water.

The buoyant force acting on the coconut is equal to the weight of thecoconut. This statement refers to

A. Principle of floatation.B. Pascals principle.C. Boyles law.D. Charles law


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12. When the speed of a fluid increases, the pressure of the fluid decreases.

This statement refers to

A. Pascals principleB. Bernoullis principleC. Archimedes principleD. Principle of conservation of energy

13. Which instrument shown below is used to measure atmospheric pressure?

A B

C D


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14. Pressure in a liquid increases when the

A. density of the liquid increases.

B. density of the liquid decreases.C. mass of the liquid increases.D. mass of the liquid decreases.

15. The figure shows a simple hydraulic system.

When a pressure is applied on a piston R, the same amount of pressure istransmitted to piston S through the liquid.

What is the principle involved?

A. Pascals principleB. Bernoullis principleC. Archimedes principle

R S

water


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16. A woman has 4 types of shoes.

Which type of shoes will exert the greatest pressure on the ground when shewears them?

17. The figure shows water spurting out from a flask when a force is exerted onthe piston.

Why does the water spurt out uniformly in all directions?

A. Force is exerted uniformlyB. Surface area of piston is smallC. Pressure is transmitted uniformlyD. The holes on the surface of the flask are small

A B

DC

forceflask

piston

water


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18. The figures show an inverted venturi tube.

Which figure shows the correct water level in P,Q and R when air is blown into

the inverted venturi tube?

P Q R

Air

PR

Q

Air

RQ

P

Air

A

C D

B


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19. The figure shows four locations above sea level, P, Q, R and S.

Which place experiences the lowest atmospheric pressure?

A. PB. QC. RD. S

P

Q

R

S


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20. The figure shows the structure of a dam. The wall at the lower part of thedam is thicker in order to withstand a greater force.

Why is there a greater force at the lower part of the dam?

A. The surface area of the lower part is smaller.B. The density of water at the lower part is greater.C. The pressure of water at the lower part is higher.D. The gravitational force at the lower part is smaller.


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21. The figure shows a duck of weight 20 N standing on the ground.

The total surface area of the ducks feet is 0.02 m2.

What is the pressure exerted by the duck on the ground?

[ Pressure =Area

Force]

A. 0.4 N m-2B. 4.0 N m-2C. 1000 N m-2

D. 10 000 N m-2


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22. The figure shows a cylinder filled with liquid Q. Point P is 12.5 cm below thesurface of liquid Q.

The density of Q is 800 kg m-3

. (g = 10 m s-2

)

What is the pressure exerted by liquid Q at point P?

[ Pressure = density x acceleration due to gravity x height]

A. 100 PaB. 400 PaC. 1 000 PaD. 2 400 Pa

.

Surface of liquid

Liquid Q

P

12.5 cm


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23. The figure shows a mercury barometer placed at sea level.

The atmospheric pressure is 76 cm Hg. The pressure exerted by the watervapour is 4 cm Hg.

What is the height of mercury, h, in cm?

A. 4 cmB. 72 cmC. 76 cmD. 80 cm

water vapour

mercuryh


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24. The figure shows a mercury manometer attached to a gas supply.

The difference in the mercury levels at both ends of the manometer is 20 cm.What is the gas pressure?

[ atmospheric pressure = 76 cm Hg ]

A. 56 cm HgB. 76 cm HgC. 96 cm HgD. 100 cm Hg

gas

20 cm

mercury


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25. Figure (a) shows the weight of a load in air. Figure (b) shows the same loadimmersed in water.

What is the buoyant force when the load is fully immersed in water?

A. 2 NB. 6 NC. 8 ND. 10 N

8 N 2 N

Figure (a) Figure (b)


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26. The figure shows a hydraulic system.

The surface area of the small piston is 0.1 m2, and the surface area of the

large piston is 1.0 m2. When a force of 50 N is exerted on the small piston, aforce ofFis exerted on the large piston.

What is the value ofF?

[ Pressure =Area

Force]

A. 5 NB. 50 NC. 100 ND. 500 N

piston0.1 m2

50 N

F

liquid

piston1.0 m

2


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27. Figure (a) shows a metal block suspended from a spring balance.

Figure (a) Figure (b)

The block is then lowered to the surface of the water slowly until it isimmersed in the water as shown as figure (b).

Which of the following graphs show the relationship between the reading, F,of the spring balance and the depth of the water,h?

F/N

F/N

AB

C

D

F/N

F/N

h/m h/m

h/mh/m


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28.

Question 28 to 30 refer to figure.

The figure shows a boy blowing over the top of a piece of paper.

Position (i) shows the condition of the paper before the boy blows over the topof the paper.Position (ii) shows the paper being lifted up when the boy blows over the topof the paper.

Compare the speed of the air above and below the paper at position (ii).

______________________________________________________________

29. Compare the pressure of the air above and below the paper at position (ii).

______________________________________________________________

______________________________________________________________

30. Based on your answers to question 28 and 29, state a relationship betweenthe speed and the pressure of air.

______________________________________________________________

______________________________________________________________

Position (i)

Position (ii)


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A B C D E

A B C D E

A B C D E

A B C D E

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A B C D E

A B C D E

A B C D E

A B C D E

Tahun/ Tingkatan : 4 Mata Pelajaran: FIZIK

GUNAKAN PENSIL 2B ATAU BB SAHAJA.TENTUKAN TIAP-TIAP TANDA ITU HITAM DAN MEMENUHI KESELURUHAN RUANG.PADAMKAN HINGGA HABIS MANA-MANA TANDA YANG ANDA UBAH

SILA HITAMKAN JAWAPAN DI BAWAH MENGIKUT HURUF JAWAPAN YANG ANDA PILIH

KEMENTERIAN PELAJARAN MALAYSIA

KERTAS JAWAPAN OBJEKTIFUjian Diagnostik

51

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A B C D E

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Konstruk No. Soalan JumlahSoalan

Bilangan SoalanGagal Dijawab

Kegunaan Guru

K1

K3

K5

K6

K7

K8

1-5

6-10

11-15

16-20

21-27

28-30

5

5

5

5

7

3

1

9

2

3

10

4

5

6

7

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Nama Pelajar:

Nama Sekolah: Modul: 3

students copy module 3

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