Heat: Transfer of Thermal Energy

Front

What are the three main methods of heat transfer?

Back

Conduction, convection, and radiation.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves, without the need for a medium.

Front

How does a metal spoon get hot in a hot liquid?

Back

The metal spoon gets hot through conduction, as thermal energy is transferred from the hot liquid to the spoon.

Front

What is heat capacity?

Back

Heat capacity is the amount of thermal energy required to change the temperature of a substance by one degree Celsius.

Front

What is an insulator?

Back

An insulator is a material that resists the transfer of thermal energy.

Front

What is an example of a good insulator?

Back

Materials like rubber, glass, and certain plastics are good insulators.

Front

How does a light keep food warm?

Back

A light keeps food warm by transferring thermal energy through radiation.

Front

What is an example of radiation in everyday life?

Back

An example of radiation is the warmth felt from the sun or a campfire.