ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

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 # 2

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

0° A
90° B
180° C
None of these D

Question # 3

Work is a scalar product of

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

Question # 4

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 # 5

Work has the dimensions as that of

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 6

Work done is lowering the bucket into the well is:

Zero A
Positive B
Negative C
None of these D

Question # 7

The space around the earth within it exerts a force of attraction on other bodies of known as:

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

Question # 8

The work done in 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 # 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-energy principle states that work done on the body by applied force is equal to change in:

Potential energy A
Kinetic nergy B
Linear momentum C
None of these D

Question # 11

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:

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

Question # 12

The commercial unit of electrical energy is :

K Watt A
KWH B
Horse power C
Joule D

Question # 13

The work performed on an object does not depend on:

Force applied A
Angle at which force is inclined to the displacement B
Initial velocity of the object C
Displacement D

Question # 14

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 # 15

A field in which the work done in moving a body along closed path is zero is called

Nuclear Field A
Conservative field B
Gravitational field C
Non-conservative field D

Question # 16

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 # 17

Power is a :

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

Question # 18

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

0.5 Kwn A
2 Kwh B
1 Kwh C
None of these D

Question # 19

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 # 20

A field in which the work done is moving a body along closed path is zero is called:

Nuclear filed A
Conservative field B
Gravitational field C
Non-conservative field D

Question # 21

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 # 22

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

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

Question # 23

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 # 24

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

0° A
90° B
180° C
None of these D

Question # 25

A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:

0° A
30° B
60° C
90° D

Question # 26

The work performed on an object does not depend on

Force applied A
Angle at which force is inclined to the displacement B
Initial velocity of the object C
Displacement D

Question # 27

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

60° A
90° B
30° C
0° D

Question # 28

The value of escape velocity of Earth planet comes out to be:

11 m/sec A
11 km/sec B
11 km/hour C
11 cm/sec D

Question # 29

Which of the following is not a unit of power:

J-sec A
Watt B
N m/sec C
Horsepower D

Question # 30

Work has a dimension as that of:

Torque A
Angular momentum B
Linear momentum C
Power D

Sr.#	Question	Answer
1	Work has the dimension as that of:	A. Torque B. Angular momentum C. Linear momentum D. Power
2	The space around the earth within which it expects a force of attraction on other bodies is known as:	A. Nuclear field B. Conservative field C. Electric field D. Gravitational field
3	Work is product of:	A. Force and velocity B. Heat and energy C. Force and displacement D. None of these
4	The work done on the body will be zero if:	A. No force is applied on the body B. Force is applied but no displacement C. Angle between F(force) and d(displacement) is 90° D. All of these are correct
5	A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, Which makes an angle of 60° with the horizontal. The work done by the boy is:	A. 1.25 J B. 12.5 J C. 125 J D. None of these
6	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
7	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
8	Most of the geysers occur in:	A. Volcanic regions B. Magnetic regions C. Northern region D. None of these
9	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
10	The dimensions of work	A. [MLT^-1] B. [MLT^-2] C. [ML²T^-2] D. [MLT]

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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

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

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

Work is a scalar product of

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:

Work has the dimensions as that of

Work done is lowering the bucket into the well is:

The space around the earth within it exerts a force of attraction on other bodies of known as:

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

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

Work-energy principle states that work done on the body by applied force is equal to change in:

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:

The commercial unit of electrical energy is :

The work performed on an object does not depend on:

Work is a always done on a body when

A field in which the work done in moving a body along closed path is zero is called

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:

Power is a :

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

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

A field in which the work done is moving a body along closed path is zero is called:

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

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

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

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

A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:

The work performed on an object does not depend on

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

The value of escape velocity of Earth planet comes out to be:

Which of the following is not a unit of power:

Work has a dimension as that of:

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