MDCAT Physics Chapter 3 online mcq test with answers for chapter 3 (Rotational and Circular Motion)

Question # 1

If the stone is thrown up vertically and return to ground, its potential energy is maximum

during the upward journey A
during the upward journey B
at the maximum height C
at the bottom D

Question # 2

The same retarding force is applied to stop a train. The train stops after 80 m. If the speed is doubled, then the Stopping distance will be:

The same A
Doubled B
Halved C
Four times D

Question # 3

Car X is traveling at half the speed of car Y. Car X has twice mass of car Y.
Which statement is correct?

Car X has half the kinetic energy of car Y A
Car X has one quarter of the kinetic energy of car Y B
Car X has twice the kinetic energy of car Y C
The tow cars have the same kinetic energy D

Question # 4

A motor boat is travelling with a speed of 3.0 m/sec. If the force on it due to water flow is 500 N, the power of the boat is

150 KW A
1.5 KW B
heat energy C
chemical energy D

Question # 5

Two bodies moving towards each other collide and move away in opposite directions. There is some rise in temperature of bodies because a part of the kinetic energy is converted into

heat energy A
electrical energy B
nuclear energy C
mechanical energy D

Question # 6

The momentum of a particle is numerically equal to its K.E. What is the velocity of a particle?

9 ms^-1 A
3 ms^-1 B
2 ms-1 C
1 ms^-1 D

Question # 7

An elevator's motor produces 3000 W power. The speed With Which it can lift a 1000 kg load is:

30.6ms^-1 A
0.306ms^-1 B
3.06ms^-1 C
300.3ms^-1 D

Question # 8

A body of mass m kg is lifted by a man to a height of one meter in 30 sec. Another man lifts the same mass to the same height in 60 sec. The work done by them are in the ratio

1: 2 A
1: 1 B
2: 1 C
4: 1 D

Question # 9

The energy which an -e acquires when accelerated through a potential difference of 1 volt is called?

1 Joule A
1 Electron volt B
1 Erg C
1 Watt D

Question # 10

Ratio of dimension of K.E and power is:

1:1 A
T:1 B
1:T C
M:J D

Question # 11

The gravity does no work, when the body moves:

Horizontally A
Vertically upwards B
Vertically downward C
At an angle of 45o with horizontal D

Question # 12

The power needed to lift amass of 5000g to height of 1min 2 second is

2.45 watt A
24.5 watt B
245 watt C
2.45 k watt D

Question # 13

When a person lifts a body from ground work done by lifting force is?

Positive A
Negative B
Zero C
Half of positive maximum D

Question # 14

In an explosion a body breaks up into two pieces of unequal masses. In this:

Both parts will have numerically equal momentum A
Lighter part will have more momentum B
Heavier part will have more momentum C
Both parts will have equal kinetic energy D

Question # 15

A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms¹ The KE of other mass is

324 J A
256 J B
245 J C
524 J D

Question # 16

Which of the following types of force can do no work on the particle on which it acts?

Frictional force A
Gravitational force B
Elastic force C
Centripetal force D

Question # 17

3 joules of work is done in 3 seconds, then power is:

6 watt A
3 watt B
18 watt C
1 watt D

Question # 18

An electric motor exerts a force of 40 N on a cable and pulls it by a distance of 30 m in one minute. The power supplied by the motor in watts is

20 A
200 B
2 C
10 D

Question # 19

If the momentum of a body is increased n times, its kinetic energy increases:

n times A
2 n times B
√𝑛 times C
n 2 time D

Question # 20

Which of the following is a unit of energy?

unit A
whatt B
Horse Power C
None of the above D

Sr.#	Question	Answer
1	When a person lifts a body from ground work done by lifting force is?	A. Positive B. Negative C. Zero D. Half of positive maximum
2	You lift a suit case from the floor and keep it on a table. The work done by you on the suitcase does not depend on	A. the path taken by the suitcase B. weight of the suitcase C. initial and final position D. None
3	Which of the following types of force can do no work on the particle on which it acts?	A. Frictional force B. Gravitational force C. Elastic force D. Centripetal force
4	A motor boat is travelling with a speed of 3.0 m/sec. If the force on it due to water flow is 500 N, the power of the boat is	A. 150 KW B. 1.5 KW C. heat energy D. chemical energy
5	A body is dropped from a height of 20 m and rebounds to a height of 10 m. the loss of energy is:	A. 10% B. 45% C. 50% D. 75%
6	Car X is traveling at half the speed of car Y. Car X has twice mass of car Y. Which statement is correct?	A. Car X has half the kinetic energy of car Y B. Car X has one quarter of the kinetic energy of car Y C. Car X has twice the kinetic energy of car Y D. The tow cars have the same kinetic energy
7	The body at rest may have:	A. Energy B. Momentum C. Speed D. Velocity
8	When the velocity of a body is doubled:	A. Its K.E is doubled B. Its P.E is doubled C. Its momentum is doubled D. Its acceleration is doubled
9	The energy which an -e acquires when accelerated through a potential difference of 1 volt is called?	A. 1 Joule B. 1 Electron volt C. 1 Erg D. 1 Watt
10	3 joules of work is done in 3 seconds, then power is:	A. 6 watt B. 3 watt C. 18 watt D. 1 watt

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

MDCAT Physics Chapter 3 MCQ Test With Answer for ( Work ,Energy & Power)

MCQ's Test For MDCAT Physics Chapter 3 Work ,Energy & Power Online Test

MDCAT Physics Chapter 3 Work ,Energy & Power Online Test

If the stone is thrown up vertically and return to ground, its potential energy is maximum

The same retarding force is applied to stop a train. The train stops after 80 m. If the speed is doubled, then the Stopping distance will be:

Car X is traveling at half the speed of car Y. Car X has twice mass of car Y.Which statement is correct?

A motor boat is travelling with a speed of 3.0 m/sec. If the force on it due to water flow is 500 N, the power of the boat is

Two bodies moving towards each other collide and move away in opposite directions. There is some rise in temperature of bodies because a part of the kinetic energy is converted into

The momentum of a particle is numerically equal to its K.E. What is the velocity of a particle?

An elevator's motor produces 3000 W power. The speed With Which it can lift a 1000 kg load is:

A body of mass m kg is lifted by a man to a height of one meter in 30 sec. Another man lifts the same mass to the same height in 60 sec. The work done by them are in the ratio

The energy which an -e acquires when accelerated through a potential difference of 1 volt is called?

Ratio of dimension of K.E and power is:

The gravity does no work, when the body moves:

The power needed to lift amass of 5000g to height of 1min 2 second is

When a person lifts a body from ground work done by lifting force is?

In an explosion a body breaks up into two pieces of unequal masses. In this:

A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms1 The KE of other mass is

Which of the following types of force can do no work on the particle on which it acts?

3 joules of work is done in 3 seconds, then power is:

An electric motor exerts a force of 40 N on a cable and pulls it by a distance of 30 m in one minute. The power supplied by the motor in watts is

If the momentum of a body is increased n times, its kinetic energy increases:

Which of the following is a unit of energy?

Prepare Complete Set Wise MDCAT Physics Chapter 3 Work ,Energy & Power Online Test MCQs Online With Answers

Set 1

Set 2

Set 3

Topic Test

Top Scorers Of MDCAT Physics Chapter 3 Work ,Energy & Power Online Test MCQ`s Test

MCAT Physics Chapter 3 Important MCQ's

Test Questions

Is this page helpful?

Car X is traveling at half the speed of car Y. Car X has twice mass of car Y.
Which statement is correct?

A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms¹ The KE of other mass is