Thermal 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 happens to the temperature of water when it boils?

Back

The temperature of water remains constant at 100°C (212°F) during boiling, even as heat is added.

Front

What is the process of heat transfer from a hot object to a cold object called?

Back

Conduction.

Front

What is the process of heat transfer through fluids (liquids and gases) called?

Back

Convection.

Front

What is evaporation?

Back

Evaporation is the process by which liquid water turns into vapor at temperatures below boiling.

Front

What is the freezing point of water?

Back

The freezing point of water is 0°C (32°F).

Front

What instrument is used to measure temperature?

Back

Thermometer.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion; in thermal energy, it refers to the movement of particles.

Front

How does heat transfer occur in a solid?

Back

Heat transfer in a solid occurs mainly through conduction, where particles collide and transfer energy.

Front

What is the relationship between temperature and kinetic energy?

Back

As temperature increases, the kinetic energy of particles also increases.