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

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

Question # 2

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

Question # 3

The tidal energy is produced due to rotation of Earth relative to:

Question # 4

The work done moving a body between two points in a conservation field is independent of the:

Question # 5

Work has a dimension as that of:

Question # 6

When a body moves against the force of friction on a horizontal plane, the work done by the body is:

Question # 7

Which force is not a conservative force?

Question # 8

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 # 9

The work done in moving a body between two points in a conservation field is independent of the:

Question # 10

The tidal energy is due to gravitational pull of :

Question # 11

A solar cell is made from:

Question # 12

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:

Question # 13

Watt x second is unit of:

Question # 14

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

Question # 15

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
2 Work is always done on a body when:
A. A force acts on it
B. It moves through certain distance
C. None of A and B is correct
D. Both A and B is correct
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 When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is:
A. 2 J
B. 0.25 J
C. 1 J
D. 0.5 J
5 Which of the following type of force can do no work on the particle on which it acts:
A. Frictional force
B. Gravitational force
C. Electric force
D. Centripetal force
6 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force
7 A laborer carrying a load on his head moves from the rest on a horizontal road to another point where he comes to rest. He has done:
A. Minimum Work
B. Maximum Work
C. Zero Work
D. Negative Work
8 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
9 Work is a 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 are correct
10 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

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