Question # 1

Work is always done on a body when:

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A force acts on it

It moves through certain distance

None of A or B is correct

Both A and B is correct

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

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

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

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Nuclear field

Conservative field

Electric field

Gravitational field

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 and work done in 25J. The angle which the force makes with the direction of motion will be

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60°

90°

30°

0°

When a falling body hits ground, its KE changes to _____ energy.

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Potential

Chemical

Mechanical

sound and heat

Area under the force displacement graph gives

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Power

Work

Heat

Energy

Work is a scalar product of

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Force, Velocity

Velocity, Displacement

Force, Displacement

Force, Momentum

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

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Conservative filed

Non-conservative field

Electric field

None of these

The types of mechanical energy is/are:

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Kinetic energy

Potential energy

Both of these

None of these

The tidal energy is due to gravitational pull of :

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sun

moon

Mars

None of these

Maximum work is done when force and displacement are

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Parallel

Antiparallel

Perpendicular

Both a and b

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

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Direction

Force applied

Path followed by the body `

Power

Work is a:

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Scalar quantity

Vector quantity

Base quantity

None of these

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