Question # 1

Which one is conservative force

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Electric force

Frictional force

Normal force

Air resistance

Tick the conservation force:

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Tension in a string

Air resistance force

Elastic spring

Frictional force

Power is a :

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Vector quantity

Base quantity

Scalar quantity

None of these

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

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Nuclear field

Conservative field

Electric field

Gravitational field

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

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

When force and displacement are perpendicular to each other than work is equal to

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Unity

Infinity

Zero

-Fd

When the body is 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

Area under the force displacement graph gives

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Power

Work

Heat

Energy

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

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

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Nuclear field

Conservative field

Electric field

Gravitational field

A solar cell is made from:

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Iron

Silicon

Germanium

Copper

Work done is maximum when angle between force and displacement is:

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0°

90°

180°

None of these

A laborer carrying a load on his head moves from the 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

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

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

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