ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

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

Try The 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 product of:

Question # 2

The work done on the body will be zero if:

Question # 3

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 # 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:

Question # 5

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

Question # 6

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

Question # 7

A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`

Question # 8

Tick the conservative force

Question # 9

A solar cell is made from:

Question # 10

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

Question # 11

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

Question # 12

Work is a always done on a body when

Question # 13

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

Question # 14

Which one is conservative force

Question # 15

Work is always done on a body when:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
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 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
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 Watt x second is unit of:
A. Force
B. Work
C. Power
D. None of these
6 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative
7 The total work done in moving the body up and then down through the same height in a gravitational field is equal to:
A. mgh
B. Its wight
C. Weight X height
D. Zero
8 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
9 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
10 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity

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