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

Work is always done on a body when:

Question # 2

Work is a:

Question # 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

Question # 4

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

Question # 5

Energy stored in the spring of a watch is called

Question # 6

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

Question # 7

Work is a Quantity

Question # 8

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

Question # 9

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

Question # 10

Which one is conservative force

Question # 11

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

Question # 12

The total work done in moving the body up and then down through the same height in a gravitational field is equal to:

Question # 13

The work performed on an object does not depend on:

Question # 14

The ultimate source of money sources of energy is:

Question # 15

Work is product of:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 A field in which the work done is moving a body along closed path is zero is called:
A. Nuclear filed
B. Conservative field
C. Gravitational field
D. Non-conservative field
2 The work done by a force keeping an object in circular motion with constant speed is:
A. Zero J.
B. 0.1 J
C. 1 J
D. 0.01 J
3 Area under the force displacement graph gives
A. Power
B. Work
C. Heat
D. Energy
4 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:
A. Power
B. Work
C. Pressure
D. None of these
5 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance
6 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
7 Work has a dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
8 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
9 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
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 or B is correct
D. Both A and B is correct

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