Heat TransferTest/Review 7th 2024-25

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 methods of heat transfer?

Back

The three methods 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 differences in temperature and density.

Front

Define radiation.

Back

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

Front

What is a conductor?

Back

A conductor is a material that readily conducts heat, electricity, or sound.

Front

What is an insulator?

Back

An insulator is a material that resists the flow of heat, electricity, or sound.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact no longer transfer heat to each other, meaning they are at the same temperature.

Front

How does temperature relate to kinetic energy?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance.

Front

What happens to heat flow between substances of different temperatures?

Back

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