Unit 4: Thermal Energy (I.6C & I.6D)

Front

What is a Closed System?

Back

A system in which the total amount of energy remains constant as energy conversions occur.

Front

What type of kinetic energy does hotter air have?

Back

Higher kinetic energy.

Front

Why does a metal spoon feel hotter than a wooden spoon when stirring soup?

Back

The metal spoon conducts heat better than the wooden spoon.

Front

What is an Insulated System?

Back

A system that does not exchange heat with its surroundings.

Front

What type of heat transfer occurs when you hold a hot cup of coffee?

Back

Conduction.

Front

Define Thermal Energy.

Back

The total kinetic energy of particles in a substance.

Front

What is Convection?

Back

The transfer of heat through the movement of fluids (liquids or gases).

Front

What is Radiation?

Back

The transfer of heat through electromagnetic waves.

Front

What is an example of a good thermal insulator?

Back

Wood, plastic, or rubber.

Front

What happens to the kinetic energy of particles as temperature increases?

Back

The kinetic energy of particles increases.