Thermal Energy

2013-14

Heat moves through liquids by the process of _______.

A: Convection

2 Pieces

What type of heat transfer is occurring at Point A?

1 Piece

A: A-Convection

A

C

B

Name an example of convection.

2 Pieces

A: EX: Hot air rising in a house; Hot air balloon rising

What type of heat transfer is occurring at Point B?

1 Piece

A: B - Conduction

A

C

B

Which type of heat energy occurs across open space?

2 Pieces

A: Radiation

What type of energy transfer occurs when a mug of hot tea warms cold

hands?

A: Conduction

2 Pieces

Insulators serve to (increase, decrease or not change) the transfer of heat

energy.

2 Pieces

A: Decrease

Name an example of radiation.

A: EX: Sunlight warming the Earth; Heat lamps warming food

2 Pieces

What type of heat energy transfer occurs when two objects touch?

2 Pieces

A: Conduction

If two objects have different temperatures, which direction does the

heat move?

A: From Hot to Cold

2 Pieces

What is the goal for the movement of heat?

A: To reach equilibrium

2 Pieces

Can heat energy be created or destroyed?

A: No

2 Pieces

Explain how a hot air balloon works.

2 Pieces

A: The air in the balloon is heated which causes it to be less dense. The less dense air rises.

What type of heat transfer is occurring at Point C?

1 Piece

A: C - Radiation

A

C

B

What type of heat transfer occurs when an ice cream is melting on the

sidewalk?

2 Pieces

A: Conduction

You get a sun burn from sitting in the sun all day. What type of heat

transfer occurred?

2 Pieces

A: Radiation