Thermal Energy Checkpoint

Front

What is convection?

Back

Convection is the transfer of thermal energy by the movement of liquids or gases. An example is boiling water, where hot water rises and cooler water sinks.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the movement of atoms and molecules, representing the total kinetic and potential energy of all particles.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials. An example is a metal spoon getting hot when placed in a pot of boiling water.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves. An example is feeling warmth from the sun.

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well. Examples include rubber, wood, and plastic.

Front

What is the role of thermal energy in cooking?

Back

Thermal energy is used in cooking to transfer heat to food, causing chemical reactions that change the food's texture and flavor.

Front

How does convection work in the atmosphere?

Back

In the atmosphere, warm air rises and cool air sinks, creating wind patterns and weather systems.

Front

What is the difference between thermal energy and temperature?

Back

Thermal energy is the total energy of all particles in a substance, while temperature is a measure of the average kinetic energy of those particles.

Front

What happens to thermal energy when ice melts?

Back

When ice melts, thermal energy is absorbed from the surroundings, causing the solid ice to change into liquid water.

Front

How does a hair dryer use convection?

Back

A hair dryer uses convection by blowing warm air over wet hair, helping to evaporate moisture quickly.