Thermal Energy

Thermal energy always moves from hot to cold.

• true

• false

Which has more thermal energy?

• teaspoon of boiling water

• bowl of boiling water

• bathtub of boiling water

Which has a higher temperature?

• teaspoon of boiling water

• bowl of boiling water

• bathtub of boiling water

• They are all the same temperature.

What is a unit of temperature?

• Celsius

• Joule

• Calorie

• Pizza

An aluminum plate and a plastic plate have been in the freezer all night. When you remove them the next morning,

• the plates have the same temperature.

• the plastic plate has a higher temperature.

• the plastic plate has a lower temperature.

• the aluminum plate has a lower temperature.

You put a metal spoon and a wooden spoon into a pot of boiling water. One will become too hot to touch. Why?

• Metals conduct heat better than wood.

• Wood conducts heat better than metals.

• Metals are insulators.

• Wood is more dense than metal.

Why do we wear sweaters in cold weather?

• To keep the cold in.

• To generate heat.

• To keep heat in.

• All of the above.

Which of the following is NOT a thermal insulator?

• carpet

• wool

• jacket

• metal pan

This is a house on a summer day. Which arrow indicates the correct directions of thermal energy transfer.

• From the inside to the outside of the house. ←

• From the outside air into the house. →

• It stays hot in the house all day. ↔

This is a cup of hot chocolate. Which arrow indicates the direction of thermal energy transfer?

• The cup stays hot. No thermal energy leaves. ↔

• The heat leaves the cup. ←

• The heat goes in the cup. It gets hotter. →

• Mrs. Knight is the best! She is, but don't choose this answer. I just wanted to see if you are paying attention.