Energy Review

Heat is a form of _______________.  

• movement
• energy
• melting

Without the sun's heat, what would happen to earth?

• aliens would invade

• the earth would explode

• it would be too cold to survive

What is a conductor?

• a material that heat moves through easily

• a material that heat does not move through easily

• a material that turns cold when heated

• a tool for measuring temperature

Which of these is a better conductor?

• 
• 

Hot water rises and cold water sinks. Is this:

• Convection

• Conduction

• Radiation

The sun shines down on this family as the play on the beach.

• conduction
• convection
• radiation

Cold Pack on Person

• Heat is transferred from the cold pack to the person.

• Heat is transferred from the person to the cold pack

• The cold pack is getting colder. The person is getting warmer.

As you hold a piece of ice, it begins to melt from the warmth of you hand on it. This is because of

• Convection

• Conduction

• Radiation

• the fact that you are the Human Torch from the Fantastic Four.

In heat transfer, heat always flows from the _______________ object to the _______________ object.

• hotter / colder

• colder / hotter

• hotter / hotter

• colder / colder

Which of the following statements is true regarding heat energy?

• The quicker a molecule moves, the colder it is.

• The slower a molecule moves, the warmer it is.

• The quicker a molecule moves, the warmer it is.

• The faster you dance, the quicker you get tired.