Temperature, Thermal Energy, and Heat

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 the difference between temperature and thermal energy?

Back

Temperature measures the average kinetic energy of particles, while thermal energy is the total energy of all particles in a substance.

Front

Which phase of matter has the most thermal energy?

Back

Gas has the most thermal energy compared to liquids and solids.

Front

What happens to particles when heat is added?

Back

The particles speed up and move further apart.

Front

What happens to particles when heat is removed?

Back

The particles slow down and move closer together.

Front

What is thermal equilibrium?

Back

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

Front

What causes heat transfer between two objects?

Back

Heat transfer occurs from the object with a higher temperature to the object with a lower temperature.

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) caused by differences in temperature.

Front

What is radiation?

Back

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