Thermal Energy

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well, preventing heat transfer.

Front

What type of energy increases as molecules move faster?

Back

Thermal energy increases as the speed of molecules increases.

Front

What is conduction?

Back

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

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) due to differences in temperature.

Front

What is radiation?

Back

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

Front

Give an example of conduction.

Back

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

Front

Give an example of convection.

Back

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

Front

Give an example of radiation.

Back

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

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the molecules in a substance, related to temperature.

Front

What happens to thermal energy when a substance is heated?

Back

When a substance is heated, its thermal energy increases, causing its molecules to move faster.