Nuclear Fission & Fusion (OCR A Level Physics): Exam Questions

Exam code: H556

57 mins9 questions
1
1 mark

The total energy released in a single fusion reaction is 4.0 MeV.

What is the change in mass in this fusion reaction?

  • 7.1 × 10−36 kg

  • 7.1 × 10−30 kg

  • 2.1 × 10−21 kg

  • 4.4 × 10−17 kg

2
1 mark

A proton collides with a stationary oxygen-18 nucleus. The collision produces a fluorine-18 nucleus and particle X.

straight p presubscript 1 presuperscript 1 space space plus space space straight O presubscript 8 presuperscript 18 space space rightwards arrow space space straight F presubscript 9 presuperscript 18 space space plus space space straight X

What is particle X?

  • neutron

  • proton

  • electron

  • positron

3
1 mark

The graph shows how the binding energy per nucleon E varies with nucleon number N.

Graph with binding energy per nucleon E on the vertical axis against nucleon number N on the horizontal axis, showing a curve from point A near the origin, rising to B, peaking at C, then descending to D.

Which region, A, B, C, or D, of the graph represents the most stable nuclei?