Phases of Matter/Thermal Energy

How many phases of matter are there?

• three

• ten

• five

• one

When matter changes phases

• it always loses heat energy

• it never loses or gains heat energy

• it always gains heat energy

• it can either lose or gain heat energy

Air is matter.

• true

• false

What is matter?

• Something that takes up space and can change temperature.

• Something that takes up space.

• Something that has mass.

• Something that has mass and takes up space.

Matter is constant and it does not change.

• True

• False

What is all matter made of?

• liquid

• gas

• atoms

• air

Potential energy cannot be converted into kinetic energy

• True

• False

Energy that is doing work is called _________.

• potential energy

• kinetic energy

• static energy

• dynamic energy

Thermal energy is ________

• light

• heat

• sound

• electricity

Stored energy is also known as _____ energy.

• kinetic

• nuclear

• thermal

• potential