Free Printable Changes of state -Thermal Energy

Worksheets

Changes of state -Thermal Energy

Total questions: 15

Worksheet time: 8mins

Name

Class

Date

Matter will change from one state to another if thermal energy is _______.

released

absorbed

all of the above

none of the above

What do you call the temperature at which a substance changes from a liquid to a solid?

Melting Point

Boiling Point

Freezing Point

Solid Point

As the thermal energy of a substance increases, its particles spread out and the substance expands.

True

False

The particles of a gas move ____than the particles of the same substance in the liquid or solid state.

faster

slower

same speed

The change of state from a solid to a liquid is called ______.

Freezing

Boiling

Melting

What is the freezing point on the celsius scale?

100

-100

Thermal energy and temperature are the same.

True

False

Which of the following are kinds of heat transfer.

Conduction

Convection

Radiation

All of the above

Boiling a liquid...

Has the opposite effect of evaporating a liquid.

Happens at a lower temperature at a lower altitude.

Decreases pressure inside of the liquid.

Increases pressure inside of the liquid.

10.

Water temperature will stop increasing as ice is melting.

True

False

11.

The temperature at which a liquid turns to a gas is called the _____ point.

boiling

freezing

amorphous

crystalline

12.

When you see fog or clouds, you are seeing water in the ______ state.

Liquid

Gas

Solid

13.

When thermal energy is increased in a solid, what change in state is happening?

Melting

Evaporation

Freezing

Condensation

14.

When a substance changes from a gas to a liquid, this is called...

Melting

Evaporation

Condensation

Freezing

15.

What happens to the movement of the particles in a substance when the thermal energy is increased?

Speed Up

Slow Down

Reset

Changes of state -Thermal Energy

Total questions: 15

Worksheet time: 8mins

Similar Resources on Wayground