PHYSICS FORM 4 CHAPTER 2 OBJECTIVE QUESTION

7/16/2019 PHYSICS FORM 4 CHAPTER 2 OBJECTIVE QUESTION

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Form 4 Physics (Tutorial 2)

Name : ________________________ Class : ____________ Date:_______________

1. Shown below are two vectors a and b.

Which of the following correctly represents the

vector addition of the vectors a and b which

results in the resultant vector c?

A C

B D

2. Between the following statements, which is not

true about an object which is moving with

constant acceleration?

A The object is moving in a straight line

B No force is acting on the object

C The resultant force on the object is greater

than zero

D The resultant force on the object is constant

3. The diagram shows the forces acting on a parachutist. What is his acceleration?

( g =10 m s-2).

A 1.25 m s-2 B 2.0 m s-2

C 5.0 m s-2 D 10 m s-2

4.

With reference to the graph above, which of the

following best describes the motion represented

by the graph?

A Accelerates, then suddenly stopsB Accelerates, then constant velocity

C Constant velocity, then stops

5. A stroboscopic camera

which takes 10 photos per

second is used to record the

positions of a piece of

sponge dropped by a boy.

Calculate the average

acceleration of the piece of

sponge using the distances

measured.

A 200 cm s-2 B 400 cm s-2

C 800 cm s-2 C 1000 cm s-2

6. The gravitational potential energy of an object

at a height of 1 m above the surface of the Earth

is 100 J. The gravitational potential energy of

the same object at a height of 1 m above the

surface of the Moon is

A 100 J B Greater than 100 J

C Less than 100 J

7. The diagram below shows a block resting in

equilibrium on an inclined plane.

A

B

C

D

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8. Which of the following quantities is the same as

the product of Force and Time?

A Energy B Power

C Inertia D Impulse

9. The total kinetic energy of two bodies before

collision is 50 J. If the collision is totally elastic

and the kinetic energy of one of the bodies after

collision is 20 J, what is the kinetic energy of

the other body?A 2.5 J B 30 J

C 70 J D 100 J

10. A constant force of 5 N acts on a body of mass

2 kg for 10 s. If no other force is acting, what is

the change of momentum of the body?

A 10 kg m s-1 B 20 kg m s-1

C 50 kg m s-1 D 100 kg m s-1

11. In the diagram below, if F = 20 N, s = 50 m and

θ = 60o, what is the work done by the girl?

A 500 J B 1000 J

C 1200 J D 3000 J

12.

In the diagram above, the bob of the simple

pendulum initially at rest, swings from positionA to position E. At which position is its kinetic

energy not zero and the potential energy is the

highest?

13. A spring extends 4 cm when 10 N is suspended

from it. Two of these springs are used as shown

to carry a 30 N load.

What is the extension of each spring?

A 4 cm B 6 cm

C 8 cm D 12 cm

14. Diagram 2 shows the pattern of oil dripping at a

constant rate from a moving car.

Which of the following describes the motion of

the car?

A Acceleration followed by constant velocity

B Deceleration followed by constant velocity

C Constant velocity followed by acceleration

D Constant velocity followed by deceleration

15. Diagram is a displacement-time graph showing

the motion of a toy car.

Which of the following parts of the graph

shows that the toy car is stationary?

A OP B PQ

C QR D RS

16. Diagram shows a heavy steam roller.

It is difficult to change the direction of this

vehicle.

This statement is refers to

A the concept of inertiaB the concept of balanced forces

C the principle of conservation of energy

D the principle of conservation of momentum

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17. Diagram shows a boy pulling a box.

Calculate the acceleration of the box.A 5.00 m s-2 B 6.67 m s-2

C 11.67 m s-2 D 13.33 m s-2

18. Diagram shows a ball with a mass of 1500 g

moving at a speed of 4 m s – 1 being kicked by a

football player. The ball rebounds at a speed of

5 m s – 1. The time of contact of the ball with the

player is 0.05s.

What is the impulsive force on the ball?

A 30 N B 120 N

C 150 N D 270 N

19. Why must the safety belts of a car be broad and

able to lengthen slightly?

A To decrease pressure and increase impact

time

B To increase pressure and decrease impact

time

C To decrease pressure and impact time

D To increase pressure and impact time

20. Diagram shows an aeroplane flying horizontally

with increasing velocity.

Which of the following statement is correct?

A Weight > Lift B Lift > Weight

C Drag = Thrust D Thrust > Drag

21. Diagram shows a box being dropped from a

helicopter.

Which of the following quantities remains

unchanged during the fall?

A Potential energy of the box

B Velocity of the box

C Acceleration of the box

D Displacement of the box

22. Diagram shows a graph of force, F , against the

extension, x , for springs R and S.

What is the conclusion derived from the graph?

A Spring R is longer

B The wire of the coils of spring R is thicker C Both spring are made of the same material

D The diameter of the coils of spring R is

bigger

23. Diagram shows a girl standing on the platform

of a train station watching a train. The train

starts from rest and moves with an acceleration

of 0.2 m s-2. The girl observes that the train

takes 24 s to move past her.

What is the length of the train?

A 48.0 m B 57.6 m

C 115.2 m D 120.0 m

24. Diagram shows four motion graphs, P, Q, R and

S.

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Which of the graphs are for motion withconstant velocity?

A P and R B P and S

C Q and R D Q and S

25. Diagram shows block L moving towards a

stationary block M on a smooth surface. After

collision the two blocks move together.

Which physical quantity becomes smaller after

the collision?

A mass B velocity

C momentum D acceleration

26. Diagram shows a moving lorry carrying sacks

of rice.

The inertia of the lorry will decrease when

A the lorry accelerates

B the lorry slows down

C the lorry stops

D some sacks of rice fall off the lorry

27. Diagram shows the three forces P, Q and R

acting on three different objects and the

acceleration produced.

Which of the following statements shows the

forces arranged in ascending order of their

magnitudes?A P , Q , R B P , R , Q

C Q , R , P D R , Q , P

28. Diagram shows a boy landing with his legs bent

after jumping down from the wall.

What is the effect of bending his legs on his

stopping time and the impulsive forces acting

on him?

29. Diagram shows a stroboscopic

photograph.

Which of the following

statements describes the motion

of the ball?

A It falls with constant acceleration

B It falls with constant speed

C It falls with increasing acceleration

D It falls with decreasing velocity

30. Which diagram correctly shows the addition of

a 6 N and a 8 N force?

A B

C D

31. Diagram shows a car accelerating uphill along a

straight road.

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Stopping time Impulsive forces

A Decreases Decreases

B Decreases Increases

C Increases Decreases

D Increases Increases

Kinetic energy Potential energy

A Decreasing Decreasing

B Decreasing Increasing

C Increasing DecreasingD Increasing Increasing




32. Table 1 shows the results of an experiment to

investigate the relationship between the force

and extension of a piece of rubber band.

Force / N 0 0.3 0.6 0.9

Length / cm 9.4 10.6 x 13.7

Extension / cm 0 1.2 2.9 4.3

What is the value of x?A 11.8 B 12.3

C 12.9 D 13.5

33. Diagram shows the journey of a bus from city A

to reach city D.

What is the displacement of the bus?

A 60 km B 100 km

C 128 km D 220 km

34. Diagram shows a velocity-time graph for the

motion of an object.

Based on the graph which of the following

statement is true?A The car moves with constant acceleration

and then stop.

B The car moves with constant velocity and

then stop.

C The car moves with constant acceleration

and then constant velocity.

D The car moves with constant acceleration

and then constant deceleration.

35. Diagram shows a brick falls from a high

building.

Which of the following quantities remains

unchanged?

A Acceleration B Velocity

C Kinetic energy D Momentum

36. Ali kicks a ball of mass 1.5 kg with a force of

50 N and the time of impact between his boot

and the ball is 0.2 s. What is the change in

momentum of the ball?

A 10 Ns B 15 NsC 250 Ns D 375 Ns

37. Which of the following graphs show the

relationship between the acceleration and height

for an object that undergoes free fall to the

ground?

A B

C D

38. Diagram shows a wooden block experiences an

acceleration when it is pulled by a force of F.

The frictional force of 10 N acting on the

wooden block.

The pulling force, F is

A equals to 10 N. B greater than 10 N.

C smaller than 10 N.

39. Diagram shows a high jumper is falling on a

thick mattress.

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What is the function of the mattress?

A To reduce the change in momentum of the

high jumper.

B To reduce the time of impact between the

high jumper and the mattress.

C To reduce the impulsive force acting on the

high jumper.

40. Diagram shows an object which is in

equilibrium of three forces P, Q and R.

Which of the following vector diagram

represents the three forces?

A B

C D

41. Diagram shows three arrangements of springs

K, L and M. All the springs used are identical.

Which of the following shows the correct graph

of force, F against extension, x for K, L and

M ?

A B

C D

42.Which graph obeys the equation F =

x

m

where m is constant?

A B

C D

43. “A heavy lorry is difficult to start moving and

difficult to stop while moving”.


A the concept of balanced force

B the concept of inertia

C the principle of conservation of momentum

D the principle of conservation of energy.

44. Diagram shows a tape chart which is produced

by a moving trolley. The frequency of the

ticker-tape timer is 50 Hz and each strip of

ticker tape contains 5 ticks.

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What is the trolley’s acceleration?

A 20 cm s-2 B 200 cm s-2

C 240 cm s-2 D 400 cm s-2

45. Diagram shows two trolleys of the same mass

approaches each other with the same speed.

When the collision between the trolleys is an

elastic collision, what happens to the trolleys

after the collision?

A The trolleys stop

B The trolleys move off together

C The trolleys move off separately in opposite

directions

46. Diagram shows a velocity-time graph of an

object.

Which statement is correct?

47. Diagram shows the path of a rocket model.

Kinetic energy is minimum at

A P B Q

C R D S

48. Diagram shows a man pulling a rope to lift a

load of 20 kg through a vertical height of 2 m.

What is the work done?

A 10 J B 40 J

C 200 J D 400 J

49. Diagram shows two steel ball bearings, P and

Q, being dropped near the surface of the earth.

Which graph represents the motion of P and Q?

A

B

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Gradient of the

graph

Area under the

graph

A Acceleration Displacement

B Acceleration Kinetic energy

C Displacement Acceleration

D Displacement Kinetic energy




C

D

50. Diagram shows a strip of ticker tape which is

attached to a moving trolley.

The trolley is moving with aA constant deceleration

B constant acceleration

C constant velocity

51. Diagram shows a displacement-time graph of a

moving bicycle.

Which of the following describes the motion of

the bicycle?

52. Which of the following vehicles is the easiest

to stop?A B

C D

53. Diagram shows two trolleys each of mass 1kg

before and after collision. The initial velocity of

trolley A and trolley B are 6 m s-1 and 4 m s -1

respectively. After collision, both trolleys move

together in the direction of their initial velocity.

What is the velocity of both trolleys after

collision?

A 1.0 m s-1 B 2.0 m s-1

C 5.0 m s-1 D 10.0 m s-1

54. A constant force of 20 N acts on a block placed

on a rough surface as shown in Diagram.

If the friction is 5 N, the block will move with

A constant velocity


C increasing acceleration

D decreasing acceleration

55. A lorry of mass 9 600 kg is moving with a

velocity of 0.025 km s-1 on the highway.

Suddenly it brakes and hit the road divider.

Calculate the impulse of the lorry.

A 2.4 x 101 N s B 2.4 x 102 N s

C 2.4 x 104

N s D 2.4 x 105

N s

56. Bumpers of cars are built from material that is

easy to crumple. This helps to

A decrease the velocity

B decrease the acceleration

C increase the time of impact

D increase the impulsive force

57. While a stone falls freely from a high cliff, which of the quantity remains unchanged?

A Speed B Velocity

C Acceleration D Displacement58. Diagram shows a flower pot of mass 2 kg

hanging from a pole.

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WX XY

A Uniform velocity Zero velocity

B Increasing

velocityZero velocity

C Uniform velocity Decreasing velocity

D Increasing

velocityDecreasing velocity




Calculate the tension, T, of each string.

A 11.54 N B 20.00 N

C 23.09 N D 40.00 N

59. Tenaga Nasional Berhad is a company which

supplies electricity all over Malaysia. The

consumption of electrical energy is measured in

A kW h-1 B kW hC J D J s

60. Diagram shows a graph of force against

extension for an elastic string.

The elastic potential energy of the string is

represented by the

A area under the graph

B gradient of the graph

C intercept on the y-axis

61. Diagram shows a displacement-time graph for a

lorry moving up a hill along a straight road.

A

B

C

D

62. Diagram shows two strips of a ticker tape. Thearrow shows the direction of the motion each

ticker tape is pulled.

Which of the following statement is true?

A Both strips undergoes constant acceleration

B The average velocities of both strips are the

same

C The time taken by strip Q is longer than that

of strip P

D The distance travelled by strip Q is more

than that of strip P

63. Diagram shows a graph of the force exerted on

a spring against the extension of the spring.

What is the elastic potential energy stored

in the spring when it is stretched for 6 cm?A 0.18 J B 0.36 J

C 18.0 J D 36.0 J

64. Which of the following physical quantities of a

freely falling object in a vacuum will not

change?

A Velocity B Momentum

C Acceleration D Kinetic energy

65. Diagram shows a ping pong ball is placed at

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one end of a spring which is compressed

and then released. The ball moves a

distance x before it stops.

Which of the following will increase the

distance x?

A Use longer spring

B Use softer spring

C Use two identical springs arranged in series

D Use spring which has smaller diameter of thespring

66. Diagram shows a constant force, F, acts on a

block placed on a smooth surface.

The block will move with

A constant speed


C gradually decreasing acceleration

D gradually increasing acceleration

67. Diagram shows a block of mass 3 kg supported

by a light string on a smooth and frictionless

incline plane.

What is the tension in the string if the block is

at rest?

A 10.0 N B 12.0 N

C 15.0 N D 30.0 N

68. Diagram shows a stone is being thrown

upwards.

Which of the following quantities of the stone

decreases before it reaches its highest point?

A Mass B Weight

C Momentum D Inertia

69. Diagram shows a load of weight, W is kept in

equilibrium by two strings.

Which of the vector diagrams represent the

forces T1, T2 and W acting on the load?

A B

C D

70. A car accelerates from rest. The graph shows

how the car’s speed changes with time.

How far does the car travel before it reaches a

steady speed?

A 100 m B 200 mC 300 m D 400 m

E 800 m

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71. Diagram shows a coin placed on a cardboard.

What happens to the coin when the cardboard is

jerked to the left?

A The coin remains at rest on the cardboard

B The coin drops down into the glass

C The coin drops outside the glass

D The coin is momentarily pushed up from the

cardboard.

72. Which object has the largest inertia?A

Mass = 90 kg

Speed = 20 ms –1

B

Mass = 360 kg

Speed = 40 ms –1

C

Mass = 1000 kg

Speed = 38 ms –1

D

Mass = 12000 kg

Speed = 3 ms –1

73. A force is applied to an object.

Which of the following will not occur?

A The object speeds up

B The shape of the object changed

C The mass of the object decreases

D The object changes its direction of motion

74. A 150 g ball is moving at a speed of 45 m s-1

when it is hit by a baseball bat. The ballrebounds at a speed of 55 m s-1 and its time of

contact with the bat is 0.04 s.

What is the impulsive force on the ball?

A 37.5 N B 60.0 N

C 375.0 N D 540.0 N

E 3 750 N

75. Which of the following safety features in a

vehicle is not designed to protect the driver

during collisions?

A Reinforced passenger compartment

B Side bars in vehicle doors

C Shock absorbersD Air bags

76. Which of the following velocity –time graph

represents the motion of a ball falling through

vacuum?A

B

C

D

77. Diagram shows a car is moving at constant

velocity.

Which relationship of the forces is correct?

A F > Fg B F = Fg

C F < Fg

78. Diagram shows a man is pilling a ropevertically downwards to lift a load of 20 kg on

the other end through a vertical height of 4 m.

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What is the work done?

A 20 J B 40 J

C 80 J D 800 J

79. Diagram shows a box weighing 10 N resting

inclined surfaces. The forces acting on the box are in equilibrium.

The value of F2 is

A 10 N B (10 sin 30º) N

C (10 cos 30º) N D (10 sin 30º – F3) N

80. A moving car has kinetic energy. When the car

stops, its kinetic energy becomes zero.

What becomes to its kinetic energy?

A Lost to the surroundings

B Transformed to potential energy

C Used to stop the car

D Transformed to heat

81. Which speed - time graph applies to an object at

rest?

A B

C D

82. Diagram shows a method of determining theresultant of two forces by using the

parallelogram of forces.

Which of the followings represents the resultant

force?

A OP B OQ

C OR D PR

83. Which of the following is not the effect of a

force that is applied to the moving toys car?

A The toy car speeds up

B The toy car change direction

C The toy car stopped

D The mass of the toy car decreases

84. Diagram shows a coconut of mass 2 kg falling

from a height of 60 m from the ground.

At which position the coconut have the highest

gravitational potential energy?

A P B Q

C R

85. Diagram shows the velocity – time graph for

the motion of a car.

Calculate the displacement traveled by the car.

A 80 m B 100 m

C 120 m D 140 mE 150m

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86. Which vehicle has the highest inertia?A B

C D

87. Diagram shows trolley A and B of same

masses.

Which comparisons are true for the momentum

of trolleys A and B after collision?

Trolley A Trolley B

A Increase Increase

B Increase Decrease

C Decrease Increase

D Unchanged Unchanged

88. Diagram shows the position of a metal ball at

the compressed spring and after the spring is

released.

Distance x can be increased by using

A a softer spring

B a longer springC a spring with bigger diameter

D two identical springs connected in parallel

89. Diagram shows two men are lifting a full of

water pail with forces F1 and F2 respectively.

Which of the following represents the forces in

equilibrium acting on the pail?

A B

C D

90. The diagram describes the motion of two bodies

before and after collision.

What is the value of v?

A 1.3 m s-1 B 2.6 m s-1

C 4.0 m s-1 D 5.0 m s-1

E 6.3 m s-1

91. Diagram shows a parachute diver falling

with a constant velocity.

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Which relationship is correct?

A U + G > W B U + W = G

C U + W < G D U + G = W

92. Which graph shows constant acceleration?

A B

C D

93. Diagram 2 shows trolley A and trolley B of

same mass.

Which comparisons are true for the velocity of

trolley A and B after collision?

94. Diagram shows a heavy trailer.

It is difficult to change the direction of this

vehicle.


A the concept of inertia

B the concept of equilibrium of forces

C the principle of conservation of energy

D the principle of conservation of momentum

95. Diagram shows a car of mass 800 kg with a

forward thrust of 3600N and a frictional force

of 2000N.

What is the acceleration of the car?

A 2.0 m s-2 B 2.5 m s-2

C 4.5 m s-2 D 7.0 m s-2

96. Diagram shows the path of a ball rolling down a

smooth slope.

The ball has the greatest change in gravitational

potential energy between the positions.

A P and R B Q and S

C P and S D R and T

97. Diagram shows a picture hanging stationary on

a wall.

Which diagram represents the forces acting on

the picture correctly?

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Trolley A Trolley B

A Increases Increases

B Increases Decreases

C Decreases Increases

D Unchanged Unchanged




A B

C D

98. Diagram shows a car involved in an accident

Why is its front and rear sections designed to

crumple easily?

A To increase friction

B To decrease impulse

C To decrease momentum

D To increase impact time

99. Diagram shows a rabbit placed on three

different arrangements of springs, P, Q and R consisting of identical springs.

Which comparison is correct about the

extension, x of P, Q and R?

A XP > XR > XQ B XQ > XR > XP

C XR > XQ > XP D XP > XQ > XR

100.

Diagram shows two strips of ticker tapes which

were attached to two moving trolleys

X and Y.

Which statement is correct?

A The time taken by both trolleys are the same

B The distance travelled by both trolleys are

the same

C The velocity of both trolleys are the same

101.

102.

103.

104.

105.

106.

107.

108.

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109.

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135.

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136.

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PHYSICS FORM 4 CHAPTER 2 OBJECTIVE QUESTION

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