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MRSM TUN GHAFAR BABA

EVERY DAY MAY NOT BE GOOD

BUT THERE IS SOMETHING

GOOD IN EVERY DAY

AWESOME PHYSICS IS AROUND YOU 2

STRUCTURE TRIAL PAHANG 2014

1. Diagram 1.1 show the use of spring in vehicle.

Diagram 1.1

(a) What is the meaning of elasticity?

………………………………………………………………………………………………………….. [1 mark]

(b) What is the function of the coil spring in the vehicle?

…………………………………………………………………………………………………………..

[1 mark]

(c) (i) State the Hooke’s Law. ……………………………………………………………………………………………….................

[1 mark]


(ii) Sketch the Hooke’s Law on the graph below.

[2 marks]

TOTAL 5 marks


TRIAL KEDAH 2013

2. Diagram 2.1 shows a catapult with two elastic cords which is used to shoot out a stone. When the elastic cords are pulled with a force of 12 N, the extension of each elastic cord is 0.2 m.

Diagram 2.1

(a) Name the form of energy stored in the extended elastic cords. …………………………………………………………………………………………………………..

[1 mark]

(b) Calculate the work done to stretch the two elastic cords.

[2 marks]

(c) The elastic cords are then released from the catapult. (i) State the conversion of energy that occurs

…………………………………………………………………………………………………………..

[1 mark]

(ii) The mass of the stone is 0.012 kg. Calculate the velocity of the stone as it leaves the catapult.

[2 marks]

TOTAL 6 marks


TRIAL TERENGGANU 2013

3. Diagram 3.1 and Diagram 3.2 show two springs, M and N which has different thickness. Both springs are made from the same material and pushed by balls of equal mass until the same length. When the forces exerted is removed, the balls move upwards caused by elasticity of material of the springs.

Diagram 3.1

Diagram 3.2

(a) What is meaning of energy?

………………………………………………………………………………………………………….. [1 mark]

(b) Using Diagram 3.1 and Diagram 3.2, compare (i) the thickness of the spring M and N,

…………………………………………………………………………………………………………..

[1 mark]

(ii) the distance bounced of the balls, …………………………………………………………………………………………………………..

[1 mark]

(iii) the elastic potential energy stored by spring M and N. …………………………………………………………………………………………………………..

[1 mark]


(c) Relate the elastic potential energy of the spring to the (i) distance bounced of the ball,

…………………………………………………………………………………………………………..

[1 mark]

(ii) the thickness of material of a spring. …………………………………………………………………………………………………………..

[1 mark]

(d) State the relationship between the thicknesses of a spring to the elastic potential energy stored in the spring. …………………………………………………………………………………………………………..

[1 mark]

(e) State why the balls bounced after the exerted forces is removed. …………………………………………………………………………………………………………..

[1 mark]

TOTAL 8 marks


TRIAL KELANTAN 2014

4. Diagram 4.1 shows a short- put event athlete throwing an iron ball of mass 3.0 kg. The work done by the athlete causes the distance of projection of the iron ball is 12.0 m.

Diagram 4.1

(a) What is the meaning of work?

………………………………………………………………………………………………………….. [1 mark]

(b) The iron ball is thrown by the athlete using the force of 100 N. (i) Calculate the work done by the athlete to throw the iron ball.

[2 marks]

(ii) State the type of energy gained by the iron ball. …………………………………………………………………………………………………………..

[1 mark]

(iii) Determine the horizontal velocity of the iron ball.

[2 marks]


(c) The modifications should be done by the athlete to increase the distance of projection of the iron ball. State the suitable modifications and give one reason for the modifications.

(i) Distance of hand movement: …………………………………………………………………………………………………………..

[1 mark]

(ii) Reason …………………………………………………………………………………………………………..

[1 mark]

(iii) The angle of throwing …………………………………………………………………………………………………………..

[1 mark]

(iv) Reason …………………………………………………………………………………………………………..

[1 mark]

TOTAL 10 marks


TRIAL KELANTAN 2014

5. Diagram 5.1 shows a container filled with liquid X. Liquid X spurts through the hole at horizontal distance, d, due to pressure.

Diagram 5.1

(a) What is the meaning of pressure? …………………………………………………………………………………………………………..

[1 mark]

(b) Give two factors that affect the pressure of liquid …………………………………………………………………………………………………………

…………………………………………………………………………………………………………

[2 marks]

(c) Calculate the pressure of liquid X at the hole. The density of liquid X is 900 kgm-3.

[2 marks]

(d) What happen to the horizontal distance, d, when liquid X is replaced by a higher density of liquid? …………………………………………………………………………………………………………..

[1 mark]

TOTAL 6 marks


TRIAL SELANGOR 2010

6. Diagram 6.1 and Diagram 6.2 show two identical thistle funnels that are covered with rubber sheet and is immersed in measuring cylinders filled with liquid P which density is 0.8 gcm-3. A manometer is connected to the thistle funnel using rubber tube. The depth, h1 and h2 are measured from the surface of the liquid P to the rubber sheet.

Diagram 6.1 Diagram 6.2

(a) State the function of manometer. …………………………………………………………………………………………………………..

[1 mark]

(b) Observe Diagram 6.1 and Diagram 6.2, (i) Compare h1 and h2

…………………………………………………………………………………………………………..

[1 mark]

(ii) Compare the difference in height of the water level in the manometer. …………………………………………………………………………………………………………..

[1 mark]

(iii) Name the physical quantity that represents the difference in height of the water in manometer. …………………………………………………………………………………………………………..

[1 mark]

(iv) Relate the answer in (b)(i) and (b)(ii). …………………………………………………………………………………………………………..

[1 mark]


(v) Relate the depth of the liquid and the physical quantity in(b)(iii). …………………………………………………………………………………………………………..

[1 mark]

(c) Liquid P with density 0.8 gcm-3 in Diagram 6.2 is then replaced by liquid Q with density 1.0 gcm-3. Predict what will happen to the difference in height of the water in manometer and give your reason. …………………………………………………………………………………………………………

…………………………………………………………………………………………………………

[2 marks]

TOTAL 8 marks


TRIAL SBP 2014

7. Diagram 7 shows an instrument placed in the school laboratory to measure an atmospheric pressure. Given that the density of mercury is 1.36 x 104 kg m-3, and the atmospheric pressure at sea level is 76 cm Hg.

Diagram 7

(a) Name of the instrument in Diagram 7.

…………………………………………………………………………………………………………..

[1 mark]

(b) (i) What is the value of h in cm Hg? …………………………………………………………………………………………………………..

[1 mark]

(ii) Based on the answer in 7(b)(i), determine the value of h in unit Pa.

[2 marks]

(c) What will happens to the length of h when the instrument is brought on a high mountain? …………………………………………………………………………………………………………..

[1 mark]

TOTAL 5 marks


TRIAL TERENGGANU 2012

8. Diagram 8 shows a hot air balloon floating stationary in air. Two forces involved are weight and up thrust.

Diagram 8

(a) What is the meaning of weight?

…………………………………………………………………………………………………………..

[1 mark]

(b) Using the forces in Diagram 8 explain why the balloon floating stationary in air. …………………………………………………………………………………………………………

…………………………………………………………………………………………………………

[2 marks]

(c) The weight of the balloon is 2000 N and the up thrust is 3200 N. Calculate the acceleration of the balloon.

[2 marks]

TOTAL 5 marks


Edited: 2016

9. Diagram 9 shows a dentist chair for children. The chair uses a hydraulic system.

Diagram 9

(a) Name the physics principle used in a hydraulic system.

…………………………………………………………………………………………………………..

[1 mark]

(b) Explain how the chair can be lifted up when the pedal is pressed down? …………………………………………………………………………………………………………

…………………………………………………………………………………………………………

[2 marks]

(c) Why the system is less effective if air bubbles are present in hydraulic fluid? ……………………………………………………………………………………………….................

[1 mark]

TOTAL 4 marks


TRIAL PAHANG 2016

10. Diagram 10.1 and 10.2 show the situation of the water levels in vertical tubes before and during the time when high speed air flows through the horizontal tube.

Diagram 10.1 Diagram 10.2

(a) What is meant by speed?

………………………………………………………………………………………………………….

[1 mark]

(b) Based on Diagram 10.1 and 10.2: (i) Compare the diameter of horizontal tube at A and B.

…………………………………………………………………………………………………………..

[1 mark]

(ii) Compare the speed of air at A and B. ………………………………………………………………………………………………………….

[1 mark]

(iii) Compare the air pressure at A and B. …………………………………………………………………………………………………………..

[1 mark]

(c) Based on the answers in 10(b), state the relationship between speed of air and (i) air pressure

…………………………………………………………………………………………………………..

[1 mark]

(ii) height of water level in vertical tube …………………………………………………………………………………………………………..

[1 mark]


(d) Name the physics principle involved in 10(c). …………………………………………………………………………………………………………..

[1 mark]

(e) State one application for the physics principle in laboratory. …………………………………………………………………………………………………………..

[1 mark]

TOTAL 8 marks


ESSAY SECTION C TRIAL SBP 2007

1. Diagram 1.1 shows an apparatus which is used to determine the density of a liquid. These apparatus is an application of Archimedes’ Principle.

Diagram 1.1

(a) State the Archimedes’ Principle

[1 mark]

(b) Diagram 1.2 shows rod A and rod B of different densities are immersed in water.

Diagram 1.2

Explain why the rods float in water and why B sinks deeper than A.

[4 marks]


(c) You are required to build a hydrometer that can be used to measure densities of concentrated acids. Table 1.1 shows the characteristics of 4 types of hydrometers L, M, N and O.

Hydrometer

Type of material of hydrometer

Diameter of capillary tube/ cm

Density of shots/ kgm-3

Diameter of bottom bulb/

cm

L Plastic 0.5 1000 1.0

M Plastic 2.0 1300 3.0

N Glass 0.5 9800 3.0

O Glass 2.0 8000 1.0

Table 1.1

Based on the table 1.1 Explain the suitable characteristics of the hydrometer so that it can be used to measure different densities of acids. Decide which hydrometer is most suitable and give reasons.

[10 marks]

(d) Diagram 1.3 shows a boat which has a safety limit line, L. The volume of the boat under the line L is 4 m3. The mass of the boat is 250 kg. [density of water : 1000 kgm-3]

Diagram 1.3

(i) Calculate the volume of water displaced by the boat.

(ii) What is the maximum load that can be carried safely by the boat?

[5 marks]

TOTAL 20 marks

To infinity and beyond…

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