Heat Transfer

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

Front

What are the three main types of heat transfer?

Back

The three main types of heat transfer are conduction, convection, and radiation.

Front

Define conduction.

Back

Conduction is the transfer of heat through direct contact between materials.

Front

Define convection.

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by temperature differences.

Front

Define radiation.

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight.

Front

In which direction does heat flow?

Back

Heat always flows from a hotter substance to a colder substance.

Front

What happens to the temperature of a substance when it absorbs heat?

Back

The temperature of the substance increases when it absorbs heat.

Front

What is an example of conduction?

Back

An example of conduction is a metal spoon getting hot when placed in a hot cup of coffee.

Front

What is an example of convection?

Back

An example of convection is warm air rising and cool air sinking in a room.

Front

What is an example of radiation?

Back

An example of radiation is feeling the warmth of the sun on your skin.