Exam-style question
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How does increasing the temperature of a gas affect its pressure, assuming volume is constant? Scenario focus: use thermal physics in a distinct A-Level Physics context and identify the relevant physical quantity before choosing the answer.
- A.Pressure decreases.
- B.Pressure increases.
- C.Pressure remains constant.
- D.Pressure fluctuates.
Model answer
What a good answer should say
- Pressure increases.
Explanation
Why this works
The correct answer is Pressure increases.. This option is correct for Thermal physics because it applies the thermal physics 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.