A Level Physics 9702, topic 25.2
Stellar radii: past paper questions
12 Cambridge A Level Physics 9702 questions on Stellar radii (25.2) from 12 papers, 2023 to 2026. Open the paper or try a question free.
Practising builds a set from this topic, free with an account. One question opens straight away, with no account.
- Questions
- 12
- Papers
- 12
- Years
- 2023 to 2026
- Total marks
- 124
- Average per question
- 10.3 marks
- Largest question
- 13 marks
By type: Structured 12
What the syllabus asks
- recall and use Wien’s displacement law λmax ∝ 1 / T to estimate the peak surface temperature of a star
- use the Stefan–Boltzmann law L = 4πσr 2 T4
- use Wien’s displacement law and the Stefan–Boltzmann law to estimate the radius of a star
How hard the questions are
- Recall0
- Apply4
- Analyse8
- Not banded0
Derived from the command word Cambridge prints in each question, banded by a fixed table beside the syllabus's own definitions. A question printing no command word is unbanded: unknown, not middling.
Command words
- stateRecall11 questions
express in clear terms
- calculateApply10 questions
work out from given facts, figures or information
- determineApply9 questions
establish an answer using the information available
- useApply7 questions
- explainAnalyse5 questions
set out purposes or reasons/make the relationships between things evident/provide why and/or how and support with relevant evidence
- defineRecall2 questions
give precise meaning
- show thatApply2 questions
- suggestAnalyse2 questions
apply knowledge and understanding to situations where there are a range of valid responses in order to make proposals
- compareAnalyse1 question
identify/comment on similarities and/or differences
- estimateApply1 question
Where the questions come from
By year
- 20262
- 20253
- 20243
- 20234
By session
- May/June7
- Oct/Nov5
By paper
- Paper 412
Questions on this topic
Showing 6 of 12, spread across the years. Open one to write your answer and have it marked.
- Try this questionQuestion 10May/June 2026, paper 41Structured8 marks
State Wien’s displacement law.
- Try this questionQuestion 9Oct/Nov 2025, paper 42Structured13 marks
State what is meant by the mass defect of a nucleus.
- Try this questionQuestion 2Oct/Nov 2024, paper 42Structured12 marksHas a diagram
The Sun may be considered as a uniform sphere with a mass of and a surface temperature of 5780 K. A probe with a mass of 2.63 kg moves in a straight line towards the Sun.
- Try this questionQuestion 10May/June 2025, paper 41Structured10 marks
State Hubble’s law.
- Try this questionQuestion 10May/June 2024, paper 41Structured9 marks
State what is meant by the luminosity of a star.
- Try this questionQuestion 9May/June 2023, paper 42Structured11 marks
Define mass defect.