Question detail
How does thermal insulation reduce unwanted energy transfers by heating?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Conservation and dissipation of energy
Question
- A. It increases the temperature of the material.
- B. It reduces the thermal conductivity of the material.
- C. It allows more heat to escape from the building.
- D. It increases the surface area of the walls.
Answer
It reduces the thermal conductivity of the material.
Explanation
The correct option is "It reduces the thermal conductivity of the material.". It reduces the thermal conductivity of the material. is right because it directly matches Energy transfers in a system: Explain how thermal insulation reduces unwanted energy transfers by heating.. The other options are less suitable because they change the required Physics relationship, confuse the relevant energy store or use a distractor that does not answer the question.
Common mistake
Misunderstanding Thermal Insulation
Students often think that thermal insulation completely prevents heat transfer instead of reducing it.
Emphasize that thermal insulation slows down the rate of heat transfer, making it less effective but not eliminating it.
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