Physics MCQs for Class 9 with Answers Chapter 9

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Physics MCQs for Class 9 with Answers


Larger is the area greater will be:
Radiation
Transfer of heat
Evaporation
Conduction of heat

More radiation is reflected by the surface.
White
Coloured
Black
Rough

On heating Air becomes.
Heavier
Lighter
Remain same
None

Flow of thermal energy from hot body cold body is called:
Specific heat
Latent heat
Transfer of heat
Heat capacity

Heat is an important form of
Matter
Energy
Wind
Force

Which gas behaves as glass or polythene to radiation:
Nitrogen
Hydrogen
Carbon di oxide
Methane

Heat form one of a metal rod a reaches to the other by the process of
convection
radiation
conduction
both (a) and (b)

Example of bad conductor is:
Wool
Iron
Graphite
Gold

In gases, heat in mainly transferred by:
Molecular collision
Conduction
Convection
Radiaiton

Leslie cube have faces:
2
3
4
5

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