MDCAT Physics Chapter 2 online mcq test with answers for chapter 2 (Work and Energy)

Question # 1

Two 8 N forces act on each end of the beam of length 0.60m. Two forces are parallel and acting opposite to each other, the angle between the force and beam is 60o , what is the torque of the couple exerted on the beam:

2.4 Nm A
4.2 Nm B
4.8 Nm C
9.6 Nm D

Question # 2

In the absence of air resistance, a stone is thrown from P and follows a parabolic path in which the highest point reached is T. The vertical component of acceleration of stone is:

Zero at T A
Greatest at T B
) Greatest at P C
the same at P as at T D

Question # 3

A rigid uniform bar of length 2.4 m is pivoted horizontally at its mid-point, weights are hung from two points of the bar as shown in diagram. To maintain horizontal equilibrium, a couple is applied to the bar: What is the torque and the direction of couple?

40 N m clockwise A
40 N m anti-clockwise B
80 N m clockwise C
80 N m anti-clockwise D

Question # 4

Speedometer of an automobile measures

Average velocity A
Instantaneous velocity B
Acceleration C
Instantaneous speed D

Question # 5

As in linear motion force determines linear acceleration where as in circular motion torque determines its

Angular acceleration A
Linear acceleration B
Vibratory acceleration C
Tangential acceleration D

Question # 6

What is the resultant force in the diagram shown?

Zero A
6N to left B
6N to right C
11N to right D

Question # 7

A rider uses Motorcycle safety helmet that extends the time of collision during accident hence decreasing the

Change of collisio A
Force acting B
Velocity C
Impulse D

Question # 8

. Time rate of change of momentum is equal to

Force A
Impulse B
Velocity C
Both A and C D

Question # 9

The centre of gravity of a triangular plate is at

On end of the plate A
The midpoint of any side of the plate B
The midpoint of any side of the plate C
The midpoint of any side of the plate D

Question # 10

A body is in translational equilibrium if

P = 0 A
L = 0 B
F = 0 C
 = 0 D

Question # 11

Swimming is possible on account of

1^st law of motion A
2^nd law of motion B
3^rd law of motion C
Newton’s law of Gravitation D

Question # 12

A man has weight 980 N in a stationary lift. What will be his weight if the lift starts moving up with anacceleration of 4.9 ms^-2

980 N A
1470 N B
1980 N C
1460 N D

Question # 13

In a one-dimensional elastic collision, the relative velocity of approach before collision is equal to:

Sum of the velocities of the bodies A
e times the relative velocity of separation after collision B
1⁄𝑒 times the relative velocity of separation after collision C
relative velocity of separation after collision D

Question # 14

The angle of projection, at which the range of projectile would become half of its maximum value.

45Degree A
30Degree B
15Degree C
60 Degree D

Question # 15

A machine gun fires ‘n’ bullets per second and the mass of each bullet is m. If v is the speed of each bullet then the force exerted on the machine gun is:

mng A
mnv B
mnvg C
mnv/g D

Question # 16

A stone is thrown upwards it returns to ground describing a parabolic path which of the following remains constant:

Speed of the ball A
Kinetic energy of the ball B
Vertical component of velocity C
) Horizontal component of velocity D

Question # 17

The rate of change of momentum of a body falling freely under gravity is equal to its

Impulse A
Kinetic energy B
Pover C
Weight D

Question # 18

A ball takes ‘t’ second to fall from a height 𝒉𝟏 and ‘2t’ second to fall from a height 𝒉𝟐 then h1/h2 is:

2 A
4 B
0.5 C
0.25 D

Question # 19

A monkey is accelerating down a string whose breaking strength is two third of his weight. The minimumacceleration of the monkey should be

1/3g A
g B
2/3 g C
0 m/s2 D

Question # 20

The distance covered by a body in time ‘t’ starting from rest is:

1/2 𝑡² A
vt B
𝑎𝑡² C
𝑎𝑡₂ D

Sr.#	Question	Answer
1	Newton’s third law concerns the forces of interaction between two bodies. Which of the following statement relating to the third law is not correct:	A. The two forces must be the same type B. The two forces must act on different bodies C. The two forces are always opposite in direction D. The two forces are equal and opposite so the bodies are in equilibrium
2	A rigid uniform bar of length 2.4 m is pivoted horizontally at its mid-point, weights are hung from two points of the bar as shown in diagram. To maintain horizontal equilibrium, a couple is applied to the bar: What is the torque and the direction of couple?	A. 40 N m clockwise B. 40 N m anti-clockwise C. 80 N m clockwise D. 80 N m anti-clockwise
3	A particle executing one dimensional motion, finally comes to rest, what will be the angle between acceleration and displacement during motion:	A. 0 B. π C. 𝜋/2 D. 𝜋/4
4	The distance covered by a body in time ‘t’ starting from rest is:	A. 1/2 𝑡² B. vt C. 𝑎𝑡² D. 𝑎𝑡₂
5	A monkey is accelerating down a string whose breaking strength is two third of his weight. The minimumacceleration of the monkey should be	A. 1/3g B. g C. 2/3 g D. 0 m/s2
6	A rider uses Motorcycle safety helmet that extends the time of collision during accident hence decreasing the	A. Change of collisio B. Force acting C. Velocity D. Impulse
7	The angle of projection, at which the range of projectile would become half of its maximum value.	A. 45Degree B. 30Degree C. 15Degree D. 60 Degree
8	select Which one of the following is not performing projectile motion	A. A gas filled balloon B. ) Bullet fired from gun C. A football kicked D. A baseball shot
9	A machine gun fires ‘n’ bullets per second and the mass of each bullet is m. If v is the speed of each bullet then the force exerted on the machine gun is:	A. mng B. mnv C. mnvg D. mnv/g
10	In a one-dimensional elastic collision, the relative velocity of approach before collision is equal to:	A. Sum of the velocities of the bodies B. e times the relative velocity of separation after collision C. 1⁄𝑒 times the relative velocity of separation after collision D. relative velocity of separation after collision

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MDCAT Physics Chapter 2 MCQ Test With Answer for (Motion & Force)

MCQ's Test For MDCAT Physics Chapter 2 Motion & Force Online Test

MDCAT Physics Chapter 2 Motion & Force Online Test

Two 8 N forces act on each end of the beam of length 0.60m. Two forces are parallel and acting opposite to each other, the angle between the force and beam is 60o , what is the torque of the couple exerted on the beam:

In the absence of air resistance, a stone is thrown from P and follows a parabolic path in which the highest point reached is T. The vertical component of acceleration of stone is:

A rigid uniform bar of length 2.4 m is pivoted horizontally at its mid-point, weights are hung from two points of the bar as shown in diagram. To maintain horizontal equilibrium, a couple is applied to the bar: What is the torque and the direction of couple?

Speedometer of an automobile measures

As in linear motion force determines linear acceleration where as in circular motion torque determines its

What is the resultant force in the diagram shown?

A rider uses Motorcycle safety helmet that extends the time of collision during accident hence decreasing the

. Time rate of change of momentum is equal to

The centre of gravity of a triangular plate is at

A body is in translational equilibrium if

Swimming is possible on account of

A man has weight 980 N in a stationary lift. What will be his weight if the lift starts moving up with anacceleration of 4.9 ms-2

In a one-dimensional elastic collision, the relative velocity of approach before collision is equal to:

The angle of projection, at which the range of projectile would become half of its maximum value.

A machine gun fires ‘n’ bullets per second and the mass of each bullet is m. If v is the speed of each bullet then the force exerted on the machine gun is:

A stone is thrown upwards it returns to ground describing a parabolic path which of the following remains constant:

The rate of change of momentum of a body falling freely under gravity is equal to its

A ball takes ‘t’ second to fall from a height 𝒉𝟏 and ‘2t’ second to fall from a height 𝒉𝟐 then h1/h2 is:

A monkey is accelerating down a string whose breaking strength is two third of his weight. The minimumacceleration of the monkey should be

The distance covered by a body in time ‘t’ starting from rest is:

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A man has weight 980 N in a stationary lift. What will be his weight if the lift starts moving up with anacceleration of 4.9 ms^-2