Question # 1

Which of the following is non-renewable fossil fuel?

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Oil

Coal

Gas

All of these

The S.I unit of efficiency is :

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J/s

Nm

watt

It has no unit

Formula of work is:

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F X S

F X V

F/S

S/F

1 hp is equal to :

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747 W

746 W

748 W

1000 W

If W stands for work, F stands for force and S stand for displacement, than mathematical work is defined as

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W = P x S

W = F x v

W = F x r

W = F x S

_____________ can neither be created nor be destroyed.

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Light

Force

Energy

Weight

A solar cell is also called:

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Photo cell

Generator

Battery

None

Which one of the following converts light energy into electrical energy:

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Electric Bulb

Electric Generator

Photocell

Electric generator

The large unit of work is:

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Kilowatt

Kilo joul

Mega joul

Both B and C

If the velocity of the body becomes double then its kinetic energy will:

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Remain the same

Become double

Become four times

Become half

One Megawatt is equal to :

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1 × 106 w

1 × 102 kw

1015 w

Nil

1 mega watt is equal to:

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10² W

10³ W

10⁵ W

10⁶W

Kilowatt - hour is unit of _____________

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Power

Energy

Work

K.e

Formula of Gravitational potential energy is:

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mgh

mg/h

1/2 mv²

None of these

The S.I unit of power is:

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Newton

Watt

Joule

Coulomb

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