Question

q5: the space between the inside and outside wall of a house is called a wall cavity. filling the wall cavity with insulation prevents energy loss from

a. conduction
b. convection
c. radiation
d. thermal diffusion

use the following information to answer q6 - q7:

q6: what is the purpose of the base layer?

a. keep heat close to the body.
b. protect against wind and rain.
c. move moisture away from the body.
d. none of the above.

q7: what is the purpose of the outer layer?

a. keep heat close to the body.
b. protect against wind and rain.
c. move moisture away from the body.
d. none of the above.

Explanation:

• Q5: Insulation in a wall cavity prevents energy loss mainly through conduction. Conduction is the transfer of heat through direct contact. Insulation materials are poor conductors of heat, so they slow down the transfer of heat (energy) from the inside to the outside of the house (or vice - versa).
• Q6: The base layer of clothing is in direct contact with the skin. Its main purpose is to wick moisture (sweat) away from the body. This helps keep the body dry and comfortable.
• Q7: The outer layer of clothing is designed to protect against external elements like wind and rain. It forms a barrier on the outside of the layered clothing system.

Answer:

• Q5: a. Conduction
• Q6: c. Move moisture away from the body
• Q7: b. Protect against wind and rain