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

Question # 1

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 # 2

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 # 3

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 # 4

A body of mass m having an initial velocity v, makes head on elastic collision with a stationary body of mass m. After the collision, the body of mass m comes to rest and only the body having mass M moves. This will happen only when:

m>>M A
m<<M B
) m=M C
m=1M D

Question # 5

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 # 6

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 # 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

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 # 9

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:

The two forces must be the same type A
The two forces must act on different bodies B
The two forces are always opposite in direction C
The two forces are equal and opposite so the bodies are in equilibrium D

Question # 10

Speedometer of an automobile measures

Average velocity A
Instantaneous velocity B
Acceleration C
Instantaneous speed D

Question # 11

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

1/2 𝑡² A
vt B
𝑎𝑡² C
𝑎𝑡₂ D

Question # 12

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 # 13

Two astronauts in a satellite must have

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

Question # 14

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

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

Question # 15

A body is in translational equilibrium if

P = 0 A
L = 0 B
F = 0 C
 = 0 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

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 # 18

. Time rate of change of momentum is equal to

Force A
Impulse B
Velocity C
Both A and C D

Question # 19

If the range of a projectile is R, the potential energy will be maximum after the projectile has covered (from start) distance equal to:

R/2 A
R/4 B
R C
R/9 D

Question # 20

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

Sr.#	Question	Answer
1	Two astronauts in a satellite must have	A. Same masses B. Same real weights C. Same apparent weights D. None of these
2	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. sin 𝜃 : 1 B. cos 𝜃 : 1 C. sin 𝜃 : cos𝜃 D. cos 𝜃 : sin𝜃
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	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
5	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
6	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
7	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. 2 B. 4 C. 0.5 D. 0.25
8	The centre of gravity of a triangular plate is at	A. On end of the plate B. The midpoint of any side of the plate C. The midpoint of any side of the plate D. The midpoint of any side of the plate
9	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’
10	Two bodies are projected at angles  and (90°–) with the horizontal at the same speed.The ratio of their maximum heights is	A. 1 : 1 B. 1 : tan  C. 1 : tan  D. tan² : 1

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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 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 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

Swimming is possible on account of

A body of mass m having an initial velocity v, makes head on elastic collision with a stationary body of mass m. After the collision, the body of mass m comes to rest and only the body having mass M moves. This will happen only when:

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

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

select Which one of the following is not performing projectile motion

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:

Speedometer of an automobile measures

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

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

Two astronauts in a satellite must have

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

A body is in translational equilibrium if

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

. Time rate of change of momentum is equal to

If the range of a projectile is R, the potential energy will be maximum after the projectile has covered (from start) distance equal to:

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:

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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