Insulation keep a house warm because it is a poor conductor of
A. Heat
B. Mass
C. Sound
D. Magnetism
what do you think, and why?
The correct answer is A. Heat.
Insulation is designed to minimize the transfer of heat between the interior and exterior of a building. It accomplishes this by being a poor conductor of heat. Heat transfer occurs through three main mechanisms: conduction, convection, and radiation. Of these, conduction is the main mechanism that insulation targets.
Conduction is the transfer of heat through direct contact between two objects or substances. For example, if you touch a hot object, the heat will transfer from the object to your hand through conduction. Insulation materials are selected for their ability to resist the transfer of heat through conduction.
By having a poor conductivity, insulation acts as a barrier to heat flow. This means that when the outside temperature is colder than the inside of the house, the insulation impedes the transfer of heat from the warm interior to the cold exterior. Similarly, in warmer weather, insulation helps to keep the outside heat from transferring to the interior, helping to keep it cool.
Therefore, insulation keeps a house warm by being a poor conductor of heat, preventing the heat from escaping the house and the cold from entering it.