Question # 1

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

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Positive work

Negative work

Zero work

Infinite work

Work is product of:

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Force and velocity

Heat and energy

Force and displacement

None of these

The field in which work done in moving a body between two points depends upon the path followed is called:

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Conservative field

Non-conservative field

Electric field

None of these

Area under the force displacement graph gives

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Power

Work

Heat

Energy

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:

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1.25 J

12.5 J

125 J

None of these

Most of the geysers occur in:

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Volcanic regions

Magnetic regions

Northern region

None of these

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

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Positive

Negative

Zero

None of these

Work is a

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Scalar quantity

Vector quantity

Base quantity

None of these

Which one is conservative force

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Electric force

Frictional force

Normal force

Air resistance

Work done is maximum when angle between force and displacement is

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0°

90°

180°

None of these

When velocity of moving body is doubled, the quantity which is also doubled is its:

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K.E.

Acceleration

Momentum

P.E.

Work has a dimension as that of:

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Torque

Angular momentum

Linear momentum

Power

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

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Zero J

1 J

0.1 J

0.01 J

Tick the conservative force

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Tension in a string

Air resistance

Elastic spring

Frictional force

Work has the dimensions as that of

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Torque

Angular momentum

Linear momentum

Power

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

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