ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

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

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ECAT Physics Chapter 4 Work and Energy

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Question # 1

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

Question # 2

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:

Question # 3

Work is a Quantity

Question # 4

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

Question # 5

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

Question # 6

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:

Question # 7

1 J = ________?

Question # 8

A solar cell is made from:

Question # 9

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

Question # 10

The work performed on an object does not depend on

Question # 11

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

Question # 12

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

Question # 13

Area under the force displacement graph gives

Question # 14

Work done is independent of path followed in _______

Question # 15

Work is a:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work has the dimensions as that of
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
2 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
A. 60°
B. 90°
C. 30°
D. 0°
3 If work is done at the rate of 2 k j per second, then total work done is half an hour will be:
A. 0.5 Kwn
B. 2 Kwh
C. 1 Kwh
D. None of these
4 When a wall is pushed by a person very strongly, he has done:
A. Maximum work
B. Zero work
C. Positive work
D. Negative work
5 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
6 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 with the direction of motion will be:
A. 60°
B. 90°
C. 30°
D. 0°
7 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
8 A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which force makes with the direction of motion of a body is:
A. 0°
B. 30°
C. 60°
D. 90°
9 If force and displacement are in opposite direction, the work done is taken as:
A. Positive work
B. Negative work
C. Zero work
D. Infinite work
10 Work done by the force of friction is always
A. Positive
B. Zero
C. Negative
D. Maximum

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