7th Grade Unit 5 Investigating Thermal Energy

Front

What is the transfer of thermal energy through currents in liquids and gases called?

Back

Convection

Front

What do we call a material that allows thermal energy to transfer easily?

Back

Conductor

Front

What is a measure of the average kinetic energy of particles in a substance?

Back

Temperature

Front

What is the transfer of thermal energy between objects in direct contact with each other?

Back

Conduction

Front

What do we call the state when two substances in the same system exchange no thermal energy and are at the same temperature?

Back

Thermal Equilibrium

Front

What is the process called when thermal energy is transferred through electromagnetic waves?

Back

Radiation

Front

What is an example of a good thermal insulator?

Back

Materials like rubber or glass wool.

Front

What happens to the temperature of a substance when it absorbs thermal energy?

Back

The temperature increases.

Front

What is the main difference between conductors and insulators?

Back

Conductors allow thermal energy to pass through easily, while insulators do not.

Front

How does convection occur in liquids?

Back

Warmer, less dense liquid rises while cooler, denser liquid sinks, creating a current.