Question # 1

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

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

Area under the force displacement graph gives

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Power

Work

Heat

Energy

The types of mechanical energy is/are:

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Kinetic energy

Potential energy

Both of these

None of these

If we draw a graph between d (along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis, then area under this straight line represents:

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Power

Work

Pressure

None of these

Which force is not a conservative force?

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Frictional force

Gravitational force

Electric force

Elastic spring force

Which force is not a conservative force:

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Frictional force

Gravitational force

Electric force

Elastic spring force

The energy stored int he water of the dam is:

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Electric energy

Kinetic energy

Potential energy

None of these

SI Unit of work is

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Nm^-1

Joule

Nms

Both a and b

The tidal energy is produced due to rotation of Earth relative to:

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Moon

Sun

Oceans

Water

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

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Positive work

Negative work

Zero work

Infinte work

Work done is lowering the bucket into the well is:

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Zero

Positive

Negative

None of these

When a body moves against the force of friction on a horizontal plane, the work done by the body is:

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Positive

Negative

Zero

None of these

Which one is conservative force

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Electric force

Frictional force

Normal force

Air resistance

Work has a dimension as that of:

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Torque

Angular momentum

Linear momentum

Power

Work is a scalar product of

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Force, Velocity

Velocity, Displacement

Force, Displacement

Force, Momentum

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