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

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 # 2

Work is always done on a body when:

Question # 3

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

Question # 4

If force and displacement are in opposite direction, the work done is taken as

Question # 5

Work done is lowering the bucket into the well is:

Question # 6

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

Question # 7

Work is a

Question # 8

The dimensions of work

Question # 9

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

Question # 10

Energy stored in the spring of a watch is called

Question # 11

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

Question # 12

If force and displacement are in opposite direction, the work done is taken as:

Question # 13

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Question # 14

Which of the following is not a unit of power:

Question # 15

If force and displacement are in opposite direction, the work done is taken as:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 A solar cell is made from:
A. Iron
B. Silicon
C. Germanium
D. Copper
2 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
3 Most of the geysers occur in:
A. Volcanic regions
B. Magnetic regions
C. Northern region
D. None of these
4 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
5 If one newton force acts on a body and displaces the body through 1m work done on body is
A. 1 dyne
B. 1 joule
C. 1KJ
D. 1 Watt
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 The space around the earth within it exerts a force of attraction on other bodies of known as:
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
8 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
9 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
10 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these

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