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 has the dimension as that of:

Question # 2

The work performed on an object does not depend on

Question # 3

Escape velocity from surface of Moon as compared to that from Earth surface is:

Question # 4

A solar cell converts energy of the Sun into:

Question # 5

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

Question # 6

Work has the dimensions as that of

Question # 7

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

Question # 8

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

Question # 9

Which force is not a conservative force:

Question # 10

1 J = ________?

Question # 11

Work is a:

Question # 12

Work done is lowering the bucket into the well is:

Question # 13

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be

Question # 14

When two protons are brought are brought closer potential energy of both of them:

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 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
2 The work done moving a body between two points in a conservation field is independent of the:
A. Direction
B. Force applied
C. Path followed by the body `
D. Power
3 The angle between centripetal force and displacement of the body moving in a circle is:
A. 0°
B. 90°
C. 180°
D. None of these
4 Work has a dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
5 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
6 If force and displacement are in opposite direction, the work done is taken as:
A. Positive work
B. Negative work
C. Zero work
D. Infinte work
7 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
8 The work done in moving a body between two points in a conservation field is independent of the:
A. Direction
B. Force applied
C. Path followed by the body
D. Power
9 Work is a scalar product of
A. Force, Velocity
B. Velocity, Displacement
C. Force, Displacement
D. Force, Momentum
10 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges

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