EASY
Upper Secondary: IGCSE
IMPORTANT
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What is needed for heat to flow through a conductor?

Important Questions on Thermal (Heat) Energy Transfers
EASY
Upper Secondary: IGCSE
IMPORTANT
Which will feel colder to touch, marble or polystyrene? Refer the picture given.

EASY
Upper Secondary: IGCSE
IMPORTANT
'A thermal (heat) energy transfer by means of motion of a fluid'. Is this a description of conduction or convection?

EASY
Upper Secondary: IGCSE
IMPORTANT
What part does convection play in spreading of energy around a room from an electric heater?

EASY
Upper Secondary: IGCSE
IMPORTANT
Write a brief explanation of convection, using the terms expansion, density and gravity.

EASY
Upper Secondary: IGCSE
IMPORTANT
Why would it not be a good idea to fit an electric heater near a ceiling in the room?

EASY
Upper Secondary: IGCSE
IMPORTANT
How energy is transferred through the vacuum of space:

EASY
Upper Secondary: IGCSE
IMPORTANT
On earth, we receive visible light from the Sun. Name two other two forms of electromagnetic radiation that we receive from the Sun.

EASY
Upper Secondary: IGCSE
IMPORTANT
If an object's temperature is increased, what happens to the amount of infrared radiation it emits?
