Physics MCQs for Class 9 with Answers
The device used to stop conduction, convention and radiation:
Thermometer
Thermo flask
Both
Nil
Radiation are emited by:
Cold body
Hot body
All bodies
None
Water is _________ conductor:
Best
Bad
Good
Poor
Falls ceiling is done to:
Lower the height of ceiling
Keep the roof clean
Cool the room
Insulate the ceiling
Good conductor is :
Air
Wood
Iron
None
In building central heating system works on the process of:
Covection
Radiation
Conduction
both a and b
In solids, Heat is transferred by:
Radiation
Conduction
Convection
Absorption
A Leslie cube has faces:
1
2
3
4
Coloured surface is a
Best emitter
Good emitter
Bad emitter
Wrost emitter
Degree of hotness or coldness of the body is called:
Heat capacity
Thermal conductivity
Heat
Temperture
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