Thermal and Kinetic Energy

Front

What is thermal energy?

Back

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

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

What happens to thermal energy when two objects at different temperatures come into contact?

Back

Thermal energy will transfer from the hotter object to the cooler object until they reach the same temperature.

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.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves, such as sunlight.

Front

What is the relationship between temperature and thermal energy?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance; higher temperature means higher thermal energy.

Front

What is heat?

Back

Heat is the transfer of thermal energy from a hotter object to a cooler one.

Front

How does heat transfer occur in a vacuum?

Back

Heat transfer in a vacuum occurs only through radiation, as there are no particles to conduct or convect heat.

Front

What is the principle of thermal equilibrium?

Back

Thermal equilibrium is the state reached when two objects in contact have the same temperature and no heat flows between them.