Question # 1

Work is product of:

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Force and velocity

Heat and energy

Force and displacement

None of these

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:`

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Minimum work

Maximum work

Zero work

Negative work

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is:

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0.5 J

2 J

0.25 J

1 J

Work is a

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Scalar quantity

Vector quantity

Base quantity

None of these

A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which force makes with the direction of motion of a body is:

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0°

30°

60°

90°

Work has a dimension as that of:

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Torque

Angular momentum

Linear momentum

Power

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

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Frictional force

Gravitational force

Electric force

Centripetal force

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

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Maximum work

Zero work

Positive work

Negative work

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is

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0.5 J

2 J

0.25 J

1 J

The work performed on an object does not depend on

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Force applied

Angle at which force is inclined to the displacement

Initial velocity of the object

Displacement

Most of the geysers occur in:

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Volcanic regions

Magnetic regions

Northern region

None of these

Watt x second is unit of:

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Force

Work

Power

None of these

Work done along a closed path in a gravitational field is:

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Maximum

Minimum

Zero

Unity

The commercial unit of electrical energy is :

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K Watt

KWH

Horse power

Joule

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

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Increases

Decreases

Remains same

None of these

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

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Direction

Force applied

Path followed by the body

Power

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ECAT Physics Chapter 4 Work and Energy Online Test MCQs With Answers

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