Question detail
During a practical investigation of insulation materials, which of the following observations would indicate that a material is a good insulator?
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. The material shows a high rate of heat loss when exposed to a warm source
- B. The material remains relatively cool compared to the surrounding warm air
- C. The material conducts heat quickly to the other side
- D. The material melts at a low temperature
Answer
The material remains relatively cool compared to the surrounding warm air
Explanation
The correct option is "The material remains relatively cool compared to the surrounding warm air". The material remains relatively cool compared to the surrounding warm air is right because it directly matches Energy transfers in a system: Required practical activity 2 (physics only): investigate the effectiveness of different materials as thermal insulators.. 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 all materials are equally effective as thermal insulators without considering their thermal conductivity.
To fix this, students should investigate and compare the thermal conductivity of different materials to understand which ones are better insulators.
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