Question # 1

In Einstein's mass-energy equation, c is the

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Speed of sound

Speed of light

Speed of electron

Speed of Earth

Good conductor is :

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Air

Wood

Iron

None

The energy stored in coal is

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Heat energy

Kinetic energy

Chemical energy

Nuclear energy

Number of factors on which torque depends :

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2

3

4

5

The earth attracts us due to its __________ mass:

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Little

Zero

Small

Large

A car is made on the principles of

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Electronics

Thermodynamics

Electricity

Mechanics

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

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Newton

Joule

Watt

Coloumb

Which of the following do not effect evaporation?

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Temperature

Wind

Volume

Surface area of liquid

1 N ___________

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1 kgms^-2

1 kg ms^-1

ms^-2

All

Expansion in one meter steel is:

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1.0 mm

0.1 mm

1.0 mm

1.3 mm

The unit of Heat is:

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Kelvin

Joule

Jkg^-1 K^-1

kg

On hot days cold air from sea began to move towards land:

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Sea breeze

Land breeze

Both A and B

None of these

Which surface is best reflector of heat?

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dull black surface

coloured surface

white surface

shining slivered surface

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9th Class Physics English Medium KPK Boards Online Mcqs MCQs With Answers

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