Question # 1

In a dam the water energy is called:

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Heat energy

Electrical energy

G.P.E

Mechanical enrgy

if a body of a mass 'm' is moving with velocity 'v' then its K.E. is given by

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K.E. = 1/2 mv

K.E. = 1/2 mv2

K.E. = mv2

K.E. = 1/2 m2v

Running water possess energy:

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Kinetic

Potential

Elastic Potential energy

Gravitational potential energy

A body possesses if it is capable to do work:

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Energy

Power

Force

All

Which quantity is scalar?

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Force

Power

Velocity

Torque

The energy stored in a dam is:

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Electric energy

Potential energy

Kinetic energy

Thermal energy

The source of energy that can be renewed are called:

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Renewable source

Non-renewable

They RAE Naturally found

None

SI unit of work is:

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Joule

Coulomb

Ampere

Kelvin

The energy released int he form of nuclear radiations in addition to heat and light is called:

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Mechanical energy

Gravitational energy

Chemical energy

Nuclear energy

The energy possessed by a body due to height is called:

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P.E

K.E

Both

None

A solar cell is also called:

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Photo cell

Generator

Battery

None

Formula of Gravitational potential energy is:

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mgh

mg/h

1/2 mv²

None of these

If f = 40 N is applied and bus is move 1m than work is :

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40 J

60 J

80 J

No work

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