Exam-style question
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What occurs to the pressure of a gas when both its volume decreases and its temperature increases? Scenario focus: use circular motion in a distinct A-Level Physics context and identify the relevant physical quantity before choosing the answer.
- A.The pressure increases significantly.
- B.The pressure decreases.
- C.The pressure remains constant.
- D.The pressure fluctuates unpredictably.
Model answer
What a good answer should say
- The pressure increases significantly.
Explanation
Why this works
The correct answer is The pressure increases significantly.. This option is correct for Thermal physics because it applies the circular motion idea in the stem and keeps the relevant quantity, unit, and physical conclusion together.
The alternatives either use a neighbouring formula, omit a required variable, or describe a different physical situation.
Common mistake
No common mistake is linked to this question yet.