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

Most of the geysers occur in:

Question # 2

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

Question # 3

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

Question # 4

Energy stored in the spring of a watch is called

Question # 5

Maximum work is done when force and displacement are

Question # 6

The space around the earth within it exerts a force of attraction on other bodies of known as:

Question # 7

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

Question # 8

Work has a dimension as that of:

Question # 9

Which of the following types of force can do no work on the particle on which it acts

Question # 10

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

Question # 11

The consumption of energy by a 60 W bulb in 2 minutes is:

Question # 12

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

Question # 13

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:

Question # 14

Work has the dimensions as that of

Question # 15

Work is a scalar product of

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
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:
A. 1.25 J
B. 12.5 J
C. 125 J
D. None of these
2 Work has the dimensions as that of
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
3 The field in which work done in moving a body between two points depends upon the path followed is called:
A. Conservative field
B. Non-conservative field
C. Electric field
D. None of these
4 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
5 The work performed on an object does not depend on:
A. Force applied
B. Angle at which force is inclined to the displacement
C. Initial velocity of the object
D. Displacement
6 When the body is moves against the force of friction on a horizontal plane, the work done by the body is:
A. Positive
B. Negative
C. Zero
D. None of these
7 A two Kg block is held 1 m above the floor for 50 seconds, the work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
8 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
9 Teh consumption of energy by a 1000 watt heater in half an hour is:
A. 5 Kwh
B. 0.5 Kwh
C. 2.5 Kwh
D. 3.2 Kwh
10 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

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