Heat Energy

What is heat energy?

• A form of energy produced by the movement of matter

• A form of energy produced by the movement of stars

• A form of energy produced by the movement of planets

What happens to the matter in an object when it is heated?

• . They slow down

• They spread out and move faster

• They become smaller

What happens to air when it is heated?

• It becomes colder

• It rises

• It sinks

What are some examples of objects that can be moved by heat energy?

• . Hot air balloons

• Ice cubes

• Snowballs

What happens to an object when it is heated?

• It contracts

• It expands

• It stays the same

What happens to an object when it is cooled?

• It contracts

• It expands

• It stays the same

What are some examples of objects that can move due to expansion and contraction caused by heat energy?

• metal springs or rods

• bicycles

• planes