Front

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

Back

Hotter to colder.

Front

What kind of heat transfer happens when the sun is heating your body?

Back

Radiation.

Front

Hot coffee is stirred with a spoon; the spoon gets hot due to __________.

Back

Conduction.

Front

You get sunburned due to __________ from the sun.

Back

Radiation.

Front

What is the meaning of convection?

Back

Hot rises, cold falls.

Front

Define conduction.

Back

The transfer of heat through direct contact between materials.

Front

Define convection.

Back

The transfer of heat through the movement of fluids (liquids or gases).

Front

Define radiation.

Back

The transfer of heat in the form of electromagnetic waves.

Front

Give an example of conduction.

Back

Touching a hot stove.

Front

Give an example of convection.

Back

Boiling water where hot water rises and cold water sinks.