Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, which determines its temperature.

Front

What are the three methods of heat transfer?

Back

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 differences in temperature.

Front

Define radiation.

Back

Radiation is the transfer of heat in the form of electromagnetic waves.

Front

What is the best conductor of heat?

Back

Metal is the best conductor of heat.

Front

What is an insulator?

Back

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

Front

Give an example of conduction.

Back

Heat moving from a clothes iron to a shirt.

Front

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

Back

The temperature of the substance increases.

Front

What is the role of thermal energy in phase changes?

Back

Thermal energy is absorbed or released during phase changes, such as melting or boiling.