Which graph best shows the relationship between pressure and volume for a fixed mass of gas at constant temperature?

Q: How do I try a free AQA Physics question?

Just tap any of the four options on this page — no signup, no card, nothing to install. You'll see the correct answer and a full mark-scheme-style explanation within a second. Each visit shows a fresh randomly-picked question from the live AQA GCSE Physics bank, so you can keep refreshing to try different ones before deciding whether to create a free account for daily access.

Q: Is Kramizo really free for AQA Physics students?

Yes — completely free. Every student gets 45 questions a day on the free plan, across any board and any subject, with no card required and no trial countdown. Kramizo's optional Pro plan removes the daily cap and adds analytics, but the free plan is genuinely free forever. We make money from the small percentage of students who choose to upgrade — not from selling data or ads.

Q: Are the Physics questions aligned to the AQA GCSE syllabus?

Every question is written against the published AQA GCSE Physics syllabus and reviewed for accuracy before being added to the bank. We match the command words (state, describe, explain, evaluate), mark allocations, and difficulty tier you'll see on real AQA past papers. Explanations are written in the style of official examiner mark schemes so students learn exactly what marks are being awarded for.

Question

Which graph best shows the relationship between pressure and volume for a fixed mass of gas at constant temperature?

Accepted Answer

C) A curve where pressure decreases as volume increases, never reaching zero — A pressure–volume graph for Boyle's Law is a hyperbola: as volume increases, pressure decreases, and neither variable reaches zero. A straight line through the origin would indicate direct proportionality, which is incorrect for a P–V graph.

Answer

D) A curve where pressure increases as volume increases

Answer

C) A curve where pressure decreases as volume increases, never reaching zero

Answer

A) A straight line with a positive gradient passing through the origin

Answer

B) A straight line with a negative gradient

One real Physics question.No signup. 30 seconds.

One real Physics question.
No signup. 30 seconds.