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

Question # 1

select Which one of the following is not performing projectile motion

A gas filled balloon A
) Bullet fired from gun B
A football kicked C
A baseball shot D

Question # 2

Two projectiles ‘A’ and ‘B’ are thrown with same speed but at angle of 40 degree and 50 degree with the horizontal. The horizontal range of ‘A’ will be:

Equal to that of ‘B’ A
Greater than that of ‘B’ B
Less than that of ‘B’ C
4/5times that of ‘B’ D

Question # 3

A boy is travelling from Lahore to Karachi with uniform velocity . Its

Speed changes A
Acceleration changes B
Direction of motion changes C
Displacement from origin changes D

Question # 4

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 # 5

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 # 6

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 # 7

A particle executing one dimensional motion, finally comes to rest, what will be the angle between
acceleration and displacement during motion:

0 A
π B
𝜋/2
C
𝜋/4 D

Question # 8

Two astronauts in a satellite must have

Same masses A
Same real weights B
Same apparent weights C
None of these D

Question # 9

If a body changes its momentum from 100 N s to 200 N s in 10 s then the unbalanceexternal force responsible to change the momentum is

5 N A
2.5 N B
2n C
10n D

Question # 10

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 # 11

The angular momentum of a body changes from 30 J-S to 50 J-S in 0.5 sec. The torque acting on it is

40 N-m A
100 N-m B
50 N-m C
150 N-m D

Question # 12

. Time rate of change of momentum is equal to

Force A
Impulse B
Velocity C
Both A and C D

Question # 13

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 # 14

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

1/2 𝑡² A
vt B
𝑎𝑡² C
𝑎𝑡₂ D

Question # 15

Two bodies are projected at angle 𝜽 𝒂𝒏𝒅 (𝟗𝟎 − 𝜽) to the horizontal with the same speed. The ratio of their times of flight is:

sin 𝜃 : 1 A
cos 𝜃 : 1 B
sin 𝜃 : cos𝜃 C
cos 𝜃 : sin𝜃 D

Question # 16

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 # 17

The time of flight of a projectile is maximum when angle of projection is:

30 Degree A
45Degree B
60Degree C
90Degree D

Question # 18

Two railway trucks of masses m and 3m move towards each other in opposite directions with speeds 2v and v respectively. These trucks collide and stick together. What is the speed of the trucks after the collision?

v/4 A
v/2 B
v C
5v/4 D

Question # 19

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 # 20

A body is in translational equilibrium if

P = 0 A
L = 0 B
F = 0 C
 = 0 D

Sr.#	Question	Answer
1	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
2	Two railway trucks of masses m and 3m move towards each other in opposite directions with speeds 2v and v respectively. These trucks collide and stick together. What is the speed of the trucks after the collision?	A. v/4 B. v/2 C. v D. 5v/4
3	Vertical component of velocity of the projectile at any instant ‘t’ from the ground is given by:	A. 𝑣𝑖𝑐𝑜𝑠𝜃 B. 𝑣𝑖𝑐𝑜𝑠𝜃 − 𝑔t C. 𝑣𝑖𝑠𝑖𝑛𝜃 − 𝑔t D. 𝑣𝑖𝑠𝑖𝑛𝜃 + 𝑔t
4	If a body changes its momentum from 100 N s to 200 N s in 10 s then the unbalanceexternal force responsible to change the momentum is	A. 5 N B. 2.5 N C. 2n D. 10n
5	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	A. 980 N B. 1470 N C. 1980 N D. 1460 N
6	The distance covered by a body in time ‘t’ starting from rest is:	A. 1/2 𝑡² B. vt C. 𝑎𝑡² D. 𝑎𝑡₂
7	Swimming is possible on account of	A. 1^st law of motion B. 2^nd law of motion C. 3^rd law of motion D. Newton’s law of Gravitation
8	The rate of change of momentum of a body falling freely under gravity is equal to its	A. Impulse B. Kinetic energy C. Pover D. Weight
9	A boy is travelling from Lahore to Karachi with uniform velocity . Its	A. Speed changes B. Acceleration changes C. Direction of motion changes D. Displacement from origin changes
10	Two projectiles ‘A’ and ‘B’ are thrown with same speed but at angle of 40 degree and 50 degree with the horizontal. The horizontal range of ‘A’ will be:	A. Equal to that of ‘B’ B. Greater than that of ‘B’ C. Less than that of ‘B’ D. 4/5times that of ‘B’

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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

select Which one of the following is not performing projectile motion

Two projectiles ‘A’ and ‘B’ are thrown with same speed but at angle of 40 degree and 50 degree with the horizontal. The horizontal range of ‘A’ will be:

A boy is travelling from Lahore to Karachi with uniform velocity . Its

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

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

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 particle executing one dimensional motion, finally comes to rest, what will be the angle betweenacceleration and displacement during motion:

Two astronauts in a satellite must have

If a body changes its momentum from 100 N s to 200 N s in 10 s then the unbalanceexternal force responsible to change the momentum is

The centre of gravity of a triangular plate is at

The angular momentum of a body changes from 30 J-S to 50 J-S in 0.5 sec. The torque acting on it is

. Time rate of change of momentum is equal to

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

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

Two bodies are projected at angle 𝜽 𝒂𝒏𝒅 (𝟗𝟎 − 𝜽) to the horizontal with the same speed. The ratio of their times of flight is:

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:

The time of flight of a projectile is maximum when angle of projection is:

Two railway trucks of masses m and 3m move towards each other in opposite directions with speeds 2v and v respectively. These trucks collide and stick together. What is the speed of the trucks after the collision?

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

A body is in translational equilibrium if

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Test Questions

A particle executing one dimensional motion, finally comes to rest, what will be the angle between
acceleration and displacement during motion:

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