6.2 Thermal Energy (Lessons 1-4)

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object, related to its temperature.

Front

What is evaporation?

Back

Evaporation is the process where a liquid turns into a gas, usually occurring at the surface of the liquid.

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 sunlight.

Front

What happens to water in an open cup over time?

Back

Water in an open cup will evaporate over time.

Front

What is a cup system?

Back

A cup system includes the different parts of the cup, the water inside, and the air above the water.

Front

What is the role of air in the cup system?

Back

Air in the cup system helps to create pressure and can affect the rate of evaporation.

Front

What is the difference between evaporation and boiling?

Back

Evaporation occurs at any temperature and only at the surface, while boiling occurs throughout the liquid at a specific temperature.

Front

What is the effect of temperature on evaporation?

Back

Higher temperatures increase the rate of evaporation because particles have more energy.