Energy/Heat

Name (First and Last)

Science Period

• Period 2
• Period 4
• Period 7
• Period 8

When the liquid heats up and the molecules move faster, the liquid will

• Contract
• Expand
• Explode

When the molecules in the liquid get colder, they

• Melt
• Slow Down
• Speed Up
• Boil

When particles of heat move faster, what happens to the temperature?

• The temperature goes up.
• The temperature goes down.
• The temperature stays the same.
• The temperature can't be taken.

An expansion joint in a bridge allows for the bridge

• to raise for a boat that might be passing through.
• to contract in hot weather and not break.
• to expand in hot weather and not break.

Conduction is demonstrated in which of the following examples?

• A metal spoon placed in a cup of hot soup becomes hot.
• The Sun warms a person’s face
• Steam rises from a cup of hot coffee.
• A person can see more clearly when a light is turned on inside.

Pots and pans are usually made of metal because metals are good ________ of heat.

• convectors
• forces
• conductors
• insulators

A substance that makes it difficult for heat to flow is called

• a thermostat
• a thermometer
• a conductor
• an insulator

The Sun’s heat energy reaches us by

• conduction
• convection
• radiation
• satellite