ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, which makes and angle of 60° with the horizontal. The work done by the boy is:

1.25 J A
12.5 J B
125 J C
None of these D

Question # 2

Tick the conservation force:

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

Question # 3

Work is a

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

Question # 4

Escape velocity from surface of Moon as compared to that from Earth surface is:

Greater A
Smaller B
Equal C
None of thes D

Question # 5

Which of the following type of force can do no work on the particle on which it acts:

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

Question # 6

The work done moving a body between two points in a conservation field is independent of the:

Direction A
Force applied B
Path followed by the body ` C
Power D

Question # 7

The angle between centripetal force and displacement of the body moving in a circle is:

0° A
90° B
180° C
None of these D

Question # 8

When the body is moves against the force of friction on a horizontal plane, the work done by the body is:

Positive A
Negative B
Zero C
None of these D

Question # 9

The work done in moving a body between two points in a conservative field is independent of the

Direction A
Force applied B
Path followed by the body C
Power D

Question # 10

Work done on a body by gravity in lifting it up to certain height is

Maximum A
Minimum B
Zero C
Negative D

Question # 11

The types of mechanical energy is/are:

Kinetic energy A
Potential energy B
Both of these C
None of these D

Question # 12

A two Kg block is held 1 m above the floor for 50 seconds, the work done is:

Zero A
10.2 J B
100 J C
980 J D

Question # 13

Work done is lowering the bucket into the well is:

Zero A
Positive B
Negative C
None of these D

Question # 14

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Zero A
10.2 J B
100 J C
980 J D

Question # 15

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

Question # 16

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

Nuclear field A
Conservative field B
Electric field C
Gravitational field D

Question # 17

When force and displacement are perpendicular to each other than work is equal to

Unity A
Infinity B
Zero C
-Fd D

Question # 18

The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is

Much more A
Very small B
No amount at all C
None of these D

Question # 19

Work is a:

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

Question # 20

Work done by the force of friction is always

Positive A
Zero B
Negative C
Maximum D

Question # 21

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is

0.5 J A
2 J B
0.25 J C
1 J D

Question # 22

When two protons are brought are brought closer potential energy of both of them:

Increases A
Decreases B
Remains same C
None of these D

Question # 23

Maximum work is done when force and displacement are

Parallel A
Antiparallel B
Perpendicular C
Both a and b D

Question # 24

Work is a Quantity

Vector A
Scalar B
Non-physical C
None of these D

Question # 25

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 # 26

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

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

Question # 27

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 # 28

Work is a:

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

Question # 29

The unit of work in CGS system is

Joule A
Erg B
Dyne C
Watt D

Question # 30

Work is a scalar product of

Force, Velocity A
Velocity, Displacement B
Force, Displacement C
Force, Momentum D

Sr.#	Question	Answer
1	Power is a :	A. Vector quantity B. Base quantity C. Scalar quantity D. None of these
2	Work is always done on a body when:	A. A force acts on it B. It moves through certain distance C. None of A or B is correct D. Both A and B is correct
3	When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is:	A. 2 J B. 0.25 J C. 1 J D. 0.5 J
4	Work is a Quantity	A. Vector B. Scalar C. Non-physical D. None of these
5	The work done in moving a body between two points in a conservative field is independent of the	A. Direction B. Force applied C. Path followed by the body D. Power
6	When the body is moves against the force of friction on a horizontal plane, the work done by the body is:	A. Positive B. Negative C. Zero D. None of these
7	Maximum work is done when force and displacement are	A. Parallel B. Antiparallel C. Perpendicular D. Both a and b
8	Which of the following is not a unit of power:	A. J-sec B. Watt C. N m/sec D. Horsepower
9	Which of the following type of force can do no work on the particle on which it acts:	A. Frictional force B. Gravitational force C. Electric force D. Centripetal force
10	Work is always done on a body when:	A. A force acts on it B. It moves through certain distance C. None of A and B is correct D. Both A and B is correct

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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

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, which makes and angle of 60° with the horizontal. The work done by the boy is:

Tick the conservation force:

Work is a

Escape velocity from surface of Moon as compared to that from Earth surface is:

Which of the following type of force can do no work on the particle on which it acts:

The work done moving a body between two points in a conservation field is independent of the:

The angle between centripetal force and displacement of the body moving in a circle is:

When the body is moves against the force of friction on a horizontal plane, the work done by the body is:

The work done in moving a body between two points in a conservative field is independent of the

Work done on a body by gravity in lifting it up to certain height is

The types of mechanical energy is/are:

A two Kg block is held 1 m above the floor for 50 seconds, the work done is:

Work done is lowering the bucket into the well is:

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

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

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

When force and displacement are perpendicular to each other than work is equal to

The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is

Work is a:

Work done by the force of friction is always

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is

When two protons are brought are brought closer potential energy of both of them:

Maximum work is done when force and displacement are

Work is a Quantity

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

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

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:

Work is a:

The unit of work in CGS system is

Work is a scalar product of

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