Exploring Thermal Energy and Matter

Front

What happens to the volume of a balloon when it is cooled?

Back

The volume of the balloon decreases.

Front

Why does a cold metal spoon placed in boiling water become hot?

Back

Thermal energy is transferred from the water to the spoon.

Front

What happens to molecular motion when temperature is increased?

Back

Molecular motion increases.

Front

What state of matter is represented by a liquid?

Back

A liquid has a definite volume but takes the shape of its container.

Front

What occurs when a material loses thermal energy?

Back

It usually contracts.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter.

Front

What is the relationship between temperature and molecular motion?

Back

As temperature increases, molecular motion increases.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves.