Question # 1

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

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

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 and B is correct

Both A and B is correct

The value of escape velocity of Earth planet comes out to be:

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11 m/sec

11 km/sec

11 km/hour

11 cm/sec

The dimensions of work

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[MLT^-1]

[MLT^-2]

[ML²T^-2]

[MLT]

Work is a scalar product of

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Force, Velocity

Velocity, Displacement

Force, Displacement

Force, Momentum

Teh consumption of energy by a 1000 watt heater in half an hour is:

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5 Kwh

0.5 Kwh

2.5 Kwh

3.2 Kwh

Escape velocity from surface of Moon as compared to that from Earth surface is:

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Greater

Smaller

Equal

None of thes

Work is a:

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Scalar quantity

Vector quantity

Base quantity

None of these

Work done in lower and bucket into the well is:

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Zero

Positive

Negative

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

Work is a

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Scalar quantity

Vector quantity

Base quantity

None of these

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

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Maximum

Minimum

Zero

None of these

The work done in 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

The types of mechanical energy is/are:

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Kinetic energy

Potential energy

Both of these

None of these

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