Exam-style question
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If the volume of a gas is doubled while keeping the temperature constant, what happens to the pressure? Scenario focus: use angular speed in a distinct A-Level Physics context and identify the relevant physical quantity before choosing the answer.
- A.The pressure doubles.
- B.The pressure halves.
- C.The pressure remains the same.
- D.The pressure quadruples.
Model answer
What a good answer should say
- The pressure halves.
Explanation
Why this works
The correct answer is The pressure halves.. This option is correct for Thermal physics because it applies the angular speed 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.