Question detail
Which of the following statements is true regarding wall thickness and energy transfer?
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. Thicker walls always lead to higher energy costs
- B. Thicker walls reduce unwanted energy transfer
- C. Thicker walls increase the rate of energy transfer
- D. Thicker walls have no impact on energy efficiency
Answer
Thicker walls reduce unwanted energy transfer
Explanation
The correct option is "Thicker walls reduce unwanted energy transfer". Thicker walls reduce unwanted energy transfer is right because it directly matches Energy transfers in a system: Describe how wall thickness affects the rate of cooling of a building.. 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 Wall Thickness Impact
Students often think that increasing wall thickness always leads to slower cooling rates without considering other factors like material properties.
Explain that while thicker walls can reduce cooling rates, the thermal conductivity of the material also plays a crucial role in determining the overall rate of cooling.
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