Question # 1

1 KW (kilo Watt) is equal to:

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10² W

10³ W

10⁵ W

10⁶W

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

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Conduction

Convection

Radiation

Nil

Perpendicular / Hypotenuse is called :

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Cos 𝜽

Sin 𝜽

Tan 𝜽

Tan^-1 𝜽

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

If the acceleration is 10 m/s2 and mass 10kg:

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F = 99N

F = 100 Kg

F = 100 m/s2

F =100 N

1 Pa is equal to

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NM

NM-1

JS

NM-2

Rate of change of momentum equals:

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Displacement

Acceleration

^Force

Velocity

Atmospheric pressure is measured by an instrument called:

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Barometer

Altimeter

Meter rod

Hydrometer

Friction is due to

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Roughness

Shape

Smoothness

None

A refrigerator is based on the principles of .

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Mechanics

Electricity

Thermodynamics

Electronics

When horse pulls a cart, the action is on the?

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Cart

Earth

Horse

Earth and Cart

Transfer of heat between two bodies which are at same temperature is:

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Maximum

Minimium

Positive

Zero

The net torque acting on a rotating body with uniform speed is:

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0

1

2

5

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

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