plumiParticle accelerators: OCR A‑Level Physics B questions
OCR A-Level Physics B past-paper questions on 6.2.1.1 Particle accelerators, 2016–2025, with mark schemes and examiner’s reports where available.
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Q33(a)
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Open the full PDFQ33(c)
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Open the full PDFQ9(a)
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All 5 questions on Particle accelerators, as a list
- June 2023, Paper 1, Q33(a) (2 marks): Calculate the velocity of the accelerated electron, ignoring relativistic effects. electron mass = 9.1 × 10–31 kg velocity = m s–1 [2]
- June 2023, Paper 1, Q33(c) (1 mark): Suggest why particles are accelerated to very high energies in nuclear scattering experiments. [1]
- November 2020, Paper 2, Q9(a) (3 marks): A doubly-charged carbon-14 atom is accelerated through a potential difference of 4.2 MV and enters a uniform magnetic field of strength 0.72 T. Use the equation
- June 2018, Paper 1, Q20 (1 mark): Which expression gives the time for the particle to complete one circle of its motion? 2r m A Bqr 2r mr B Bq 2r m C Bq Bq D 2r m Your answer [1]
- June 2018, Paper 1, Q21 (1 mark): A proton and an α particle, with the same velocity, enter the region of constant magnetic flux density. r What is the ratio of the radii of their paths, ? a rpr
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