Energy 21 4th Grade

Multiple Choice

What is the energy of movement?

• kinetic

• potential

Multiple Choice

Into which two types of energy does a hair dryer change electricity?

• heat and electricity

• heat and kinetic

• kinetic and chemical

• kinetic and potential

Multiple Choice

How does the air become hot?

• It blows over the heating element.

• The electricity heats the air.

• The movement of the air makes it hot.

• Fire heats it.

Multiple Choice

If the coil of wire didn’t heat up, would the air be hot?

• Yes, the movement of the air would

  heat it.

• No, the fan would cool it off.

• Yes, a small fire would heat it.

• No, the wire is what heats the air.