Question # 1

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

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45°

0°

60°

90°

Which of following units is equal to Kgm² s^-2

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Newton

Joule

Watt

Coloumb

Rate of doing work is called:

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Energy

Torque

Power

Moment

Solar energy is a type of.

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Renewable

Non-renewable

Natural

None

What type of conversion is done candle burning?

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Chemical __ ;light

Chemical __ heat

Both a & b

None of above

Fossil fuels are usually:

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Carbon di oxide

Hydrogen

Hydrocarbons

Carbon monoxide

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

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P.E

K.E

Both

None

The ratio of useful output to input energy is called:

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Power

Energy

Efficiency

Horse power

Formula of Power:

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P = wt

P = w/t

P = t/w

P = w/t²

The speed of light is equal to:

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3 x 10⁵ ms^-1

3 x 10⁸ms^-1

3 x 10⁹ms^-1

3 x 10²ms^-1

Einstein mass energy equation is:

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E= mc²

E= m²c

E = 1/2 mc²

2 mc²

In a dam the water energy is called:

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Heat energy

Electrical energy

G.P.E

Mechanical enrgy

One horse power is equal to:

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746 W

749 W

764 W

794 W

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Physics 9th Class English Medium Unit 6 Online Test MCQs With Answers

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