Physics MCQs for Class 9 with Answers
Land breeze from land to sea during:
Day
Night
Afternoon
Morning
Leslie’s cube is filled with:
Cold water
Hot water
Mercury
Air
Which one is a good conductor?
cotton
air
wool
iron
Convection of heat is the process of heat transfer due to the:
Random motion of molecules
Downward movement of molecules
Upward movement of molecules
Free movement of molecules
False ceiling is done to
Lower the height of ceiling
Keep the roof clean
Cool the room
Insulate the ceiling
What of the following is a god radiator of heat?
a Shinning silvered surface
a dull black surface
a white black surface
a shinning colored surface
In solid, heat is transferred by:
Radiation
Conduction
Convection
Absorption
Light from the sun contain thermal radiation of:
Long wavelength
Short wavelength
Ultra violet rays
Visible light
Which surface is best reflector of heat?
dull black surface
coloured surface
white surface
shining slivered surface
There are ways to transfer the heat from one place to another.
1
2
3
4
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