Question # 1

Which one is more elastic ?

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Rubber

Steel

Copper

All has equal values

Which of the following is produced in refrigerators by evaporation of a liquefied gas?

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Heating

Cooling

Freezing

Melting

The centre of gravity of uniform triangle is:

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Point of intersection of medians

On its vertex

On middle point of its axis

Point of intersection of diagonal

................ causes coastal breeze.

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Conduction

Convection

Radiation

Nil

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

If a liquid of mass 'm' requires thermal energy 'ΔQv' to completely change into gas at its boiling point without any change in its temperature, then its latent heat of vapourization can be calculated as following:

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Hv = m/ΔQv

Hv = mΔQv

Hv = cmΔQv

Hv =ΔQv/m

Gravitational force is a

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Contacted force

Non-contact force

Electrical force

Charging force

The Earth attracts a body with a force equal to its:

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Velocity

Gravity

Weight

Mass

Which pair of physical quantities has same SI unit?

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energy , power

power , work

energy , work

work , momentum

1000 liters is equal to:

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100 m³

1 m³

1 cm³

1 mm³

Which quantity is scalar?

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Force

Power

Velocity

Torque

The weight of a body of mass 20 kg is:

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2 N

10 N

20 N

200 N

The scientist who notice that all the freely falling objects hae same acceleration.

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Einstein

Galileo

Coulomb

Newton

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

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