Unit 2 Flashcard Review: States of Matter & Thermal Energy

Front

Energy from the Sun travels to Earth as:

Back

Radiation

Front

Phase change from liquid to solid is called:

Back

Freezing

Front

The temperature at which a substance changes from a liquid to a solid is called the:

Back

Freezing point

Front

What causes states of matter to change?

Back

Thermal Energy

Front

The transfer of energy by waves through an empty space is called:

Back

Radiation

Front

What is the process of a solid turning into a liquid called?

Back

Melting

Front

What is the temperature at which a substance changes from a gas to a liquid?

Back

Condensation point

Front

What is the process of a liquid turning into a gas called?

Back

Vaporization

Front

What is the term for the amount of energy needed to change a substance from solid to liquid?

Back

Heat of fusion

Front

What is the term for the amount of energy needed to change a substance from liquid to gas?

Back

Heat of vaporization