ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

Maximum work is done when force and displacement are

Parallel A
Antiparallel B
Perpendicular C
Both a and b D

Question # 2

Work is a always done on a body when

A force acts on it A
It moves through certain distance B
None of A or B is correct C
Both A and B are correct D

Question # 3

Work is always done on a body when:

A force acts on it A
It moves through certain distance B
None of A or B is correct C
Both A and B is correct D

Question # 4

The tidal energy is due to gravitational pull of :

sun A
moon B
Mars C
None of these D

Question # 5

The unit of work in CGS system is

Joule A
Erg B
Dyne C
Watt D

Question # 6

A 100 kg car is moving at a speed of 10 m/sec and comes to rest after covering a distance of 50 m. the amount of work done against friction is:

+5 x 10¹J A
+5 x 10²J B
+5 x 10³J C
+5 x 10⁴J D

Question # 7

Work done is maximum when angle between force and displacement is:

0° A
90° B
180° C
None of these D

Question # 8

If we draw a graph between d(along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis then area under this straight line represents:

Power A
Work B
Pressure C
None of these D

Question # 9

In the force applied to parallel to the direction of motion, then the work done is:

Positive A
Negative B
Zero C
None of these D

Question # 10

When a falling body hits ground, its KE changes to _____ energy.

Potential A
Chemical B
Mechanical C
sound and heat D

Question # 11

The ultimate source of money sources of energy is:

Sun A
Air B
Water C
Petroleum D

Question # 12

When a wall is pushed by a person very strongly, he has done:

Maximum work A
Zero work B
Positive work C
Negative work D

Question # 13

Work done along a closed path in a gravitational field is:

Maximum A
Minimum B
Zero C
Unity D

Question # 14

Tick the conservation force:

Tension in a string A
Air resistance force B
Elastic spring C
Frictional force D

Question # 15

Work has the dimensions as that of

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 16

Work is a:

Scalar quantity A
Vector quantity B
Base quantity C
None of these D

Question # 17

The field in which work done is moving body between two points depends upon the path followed is called:

Conservative filed A
Non-conservative field B
Electric field C
None of these D

Question # 18

The dimensions of work

[MLT^-1] A
[MLT^-2] B
[ML²T^-2] C
[MLT] D

Question # 19

If one newton force acts on a body and displaces the body through 1m work done on body is

1 dyne A
1 joule B
1KJ C
1 Watt D

Question # 20

The space around the earth in which its gravitational force acts on a body is called

Electric Field A
Gravitational field B
Magnetic field C
Conservative field D

Question # 21

The work done on the body will be zero if:

No force is applied on the body A
Force is applied but no displacement B
Angle between F(force) and d(displacement) is 90° C
All of these are correct D

Question # 22

The work done by a force, keeping an object in circular motion with constant speed is:

Zero J A
1 J B
0.1 J C
0.01 J D

Question # 23

The work done by a force keeping an object in circular motion with constant speed is:

Zero J. A
0.1 J B
1 J C
0.01 J D

Question # 24

The power of an electric generating station is expressed in:

Kilo Jule A
Kilowatt-hour B
Kilo watt C
Watt D

Question # 25

A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`

Minimum work A
Maximum work
B
Zero work C
Negative work D

Question # 26

Work has a dimension as that of:

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 27

Work done is maximum when angle between force and displacement is:

0° A
90° B
180° C
None of these D

Question # 28

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. The angle which the force makes the direction of motion will be:

60° A
90° B
30° C
0° D

Question # 29

Watt x second is unit of:

Force A
Work B
Power C
None of these D

Question # 30

When velocity of moving body is doubled, the quantity which is also doubled is its:

K.E. A
Acceleration B
Momentum C
P.E. D

Sr.#	Question	Answer
1	The space around the earth within it exerts a force of attraction on other bodies of known as:	A. Nuclear field B. Conservative field C. Electric field D. Gravitational field
2	In the force applied to parallel to the direction of motion, then the work done is:	A. Positive B. Negative C. Zero D. None of these
3	A 100 Kg car is moving at the speed of 10 m/sec and comes to rest after covering a distance of 50 m. The amount of work done against the friction is:	A. +5 X 10¹J B. +5 X 10²J C. +5 X 10³J D. +5 X 10⁴J
4	Work is a Quantity	A. Vector B. Scalar C. Non-physical D. None of these
5	If one newton force acts on a body and displaces the body through 1m work done on body is	A. 1 dyne B. 1 joule C. 1KJ D. 1 Watt
6	Teh consumption of energy by a 1000 watt heater in half an hour is:	A. 5 Kwh B. 0.5 Kwh C. 2.5 Kwh D. 3.2 Kwh
7	Work is a:	A. Scalar quantity B. Vector quantity C. Base quantity D. None of these
8	A laborer carrying a load on his head moves from the rest on a horizontal road to another point where he comes to rest. He has done:	A. Minimum Work B. Maximum Work C. Zero Work D. Negative Work
9	A field in which the work done in moving a body along closed path is zero is called	A. Nuclear Field B. Conservative field C. Gravitational field D. Non-conservative field
10	The unit of work in CGS system is	A. Joule B. Erg C. Dyne D. 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

ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 4 Work and Energy

ECAT Pre General Science Physics Chapter 4 Work and Energy

Maximum work is done when force and displacement are

Work is a always done on a body when

Work is always done on a body when:

The tidal energy is due to gravitational pull of :

The unit of work in CGS system is

A 100 kg car is moving at a speed of 10 m/sec and comes to rest after covering a distance of 50 m. the amount of work done against friction is:

Work done is maximum when angle between force and displacement is:

If we draw a graph between d(along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis then area under this straight line represents:

In the force applied to parallel to the direction of motion, then the work done is:

When a falling body hits ground, its KE changes to _____ energy.

The ultimate source of money sources of energy is:

When a wall is pushed by a person very strongly, he has done:

Work done along a closed path in a gravitational field is:

Tick the conservation force:

Work has the dimensions as that of

Work is a:

The field in which work done is moving body between two points depends upon the path followed is called:

The dimensions of work

If one newton force acts on a body and displaces the body through 1m work done on body is

The space around the earth in which its gravitational force acts on a body is called

The work done on the body will be zero if:

The work done by a force, keeping an object in circular motion with constant speed is:

The work done by a force keeping an object in circular motion with constant speed is:

The power of an electric generating station is expressed in:

A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`

Work has a dimension as that of:

Work done is maximum when angle between force and displacement is:

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. The angle which the force makes the direction of motion will be:

Watt x second is unit of:

When velocity of moving body is doubled, the quantity which is also doubled is its:

Prepare Complete Set Wise ECAT Pre General Science Physics Chapter 4 Work and Energy MCQs Online With Answers

Set 1

Set 2

Set 3

Set 4

Topic Test

Top Scorers Of ECAT Pre General Science Physics Chapter 4 Work and Energy MCQ`s Test

ECAT Physics Chapter 4 Important MCQ's

Test Questions