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

The work performed on an object does not depend on:

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Work is always done on a body when:

Question # 6

The tidal energy is due to gravitational pull of :

Question # 7

The work performed on an object does not depend on

Question # 8

Watt x second is unit of:

Question # 9

Teh consumption of energy by a 1000 watt heater in half an hour is:

Question # 10

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

Question # 11

Work has a dimension as that of:

Question # 12

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

Question # 13

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:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
2 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
3 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
4 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
5 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative
6 The work done by a force, keeping an object in circular motion with constant speed is:
A. Zero J
B. 1 J
C. 0.1 J
D. 0.01 J
7 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity
8 Power is a :
A. Vector quantity
B. Base quantity
C. Scalar quantity
D. None of these
9 Work done is lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
10 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

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