Cambridge A Level · 9702 · Paper 4 · A Level structured questions
Physics 9702/42 May/June 2020 past paper
Cambridge A Level Physics (9702) Paper 4 (A Level structured questions), variant 2, May/June 2020: the question paper and its official mark scheme, 11 questions worth 93 marks. Free to open, no account needed.
- Questions
- 11
- Marks
- 93
File names: 9702_s20_qp_42 · 9702_s20_ms_42
Topics in this paper
Which syllabus chapters 9702/42 May/June 2020 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Electric fields | 2 | 20 |
| Electricity | 1 | 11 |
| Gravitational fields | 1 | 10 |
| Ideal gases | 1 | 8 |
| Motion in a circle | 1 | 8 |
| Quantum physics | 1 | 8 |
| Nuclear physics | 1 | 8 |
| Medical physics | 1 | 7 |
| Magnetic fields | 1 | 7 |
| Thermodynamics | 1 | 6 |
Questions in 9702/42 May/June 2020
- Question 1
(a) Define gravitational potential at a point. (b) An isolated solid sphere of radius r may be assumed to have its mass M concentrated at its centre. The magnitude of the gravitational potential at the surface of the sphere is …
- Question 2
(a) A square box of volume V contains N molecules of an ideal gas. Each molecule has mass m. Using the kinetic theory of ideal gases, it can be shown that, if all the molecules are moving with speed v …
- Question 3
By reference to the first law of thermodynamics, state and explain the change, if any, in the internal energy of: (a) a lump of solid lead as it melts at constant temperature (b) some gas in a toy balloon when …
- Question 4
A dish is made from a section of a hollow glass sphere. The dish, fixed to a horizontal table, contains a small solid ball of mass 45 g, as shown in Fig. 4.1. C ball mass 45 g surface of …
- Question 5
(a) Explain the principles of the detection of ultrasound waves for medical diagnosis. (b) By reference to specific acoustic impedance, explain why there is very little transmission of ultrasound waves from air into skin.
- Question 7
A metal sphere of radius R is isolated in space. Point P is a distance x from the centre of the sphere, as illustrated in Fig. …
- Question 8
(a) An ideal operational amplifier (op‑amp) is connected to a load resistor. The op‑amp is assumed to have infinite bandwidth and zero output resistance. State: (i) what is meant by infinite bandwidth (ii) the effect, if any, on the output …
- Question 9
(a) An electron is travelling at speed v in a straight line in a vacuum. It enters a uniform magnetic field of flux density …
- Question 10
(a) State Faraday’s law of electromagnetic induction. (b) A simple iron‑cored transformer is illustrated in Fig. 10.1. output laminated soft-iron core secondary coil primary coil input Fig. 10.1 (i) State one function of a transformer. (ii) A sinusoidal alternating current …
- Question 11
(a) The uppermost energy bands in a solid are known as the valence band (VB), the forbidden band (FB) and the conduction band (CB). A copper wire is at room temperature. Use band theory to explain why the resistance of …
- Question 12
(a) State what is meant by the mass defect of a nucleus. (b) Some masses are shown in Table 12.1. Table 12.1 mass / u proton 1 1p neutron 1 0n helium‑4 (4 2He) nucleus …
Other Physics papers from May/June 2020
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- 9702/12 Multiple choice
- 9702/13 Multiple choice
- 9702/21 AS structured questions
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- 9702/41 A Level structured questions
- 9702/43 A Level structured questions
- 9702/51 Planning, analysis & evaluation
- 9702/52 Planning, analysis & evaluation
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