Question

Which statements represent convection? Check all that apply

Answer 1

Answer:

• The movement of air in a hot-air balloon makes it rise into the sky.
• A house has high heating bills because the heat ends up in the attic.

Explanation:

Thermal convection is the process of heat transmission in which thermal energy propagates through the transport of matter, due to a density difference and the action of gravity. In this sense the warmer matter becomes less dense and tends to rise, while the cold matter tends to go down. Two examples of this are:

• The movement of air in a hot-air balloon makes it rise into the sky.
• A house has high heating bills because the heat ends up in the attic.

Answer 2

Answer:B.) The movement of air in a hot-air balloon makes it rise into the sky.

E.) A house has high heating bills because the heat ends up in the attic.

Explanation: