Cambridge A Level ยท 9702 ยท Paper 4 ยท A Level structured questions
Physics 9702/42 Feb/March 2025 past paper
Cambridge A Level Physics (9702) Paper 4 (A Level structured questions), variant 2, Feb/March 2025: the question paper and its official mark scheme, 10 questions worth 100 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 10
- Marks
- 100
- Grade A from
- 65
File names: 9702_m25_qp_42 ยท 9702_m25_ms_42
Grade thresholds for 9702/42 Feb/March 2025
The minimum raw marks Cambridge set for each grade on this component (out of 100). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E |
|---|---|---|---|---|
| 65 | 56 | 46 | 35 | 23 |
Topics in this paper
Which syllabus chapters 9702/42 Feb/March 2025 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Magnetic fields | 2 | 20 |
| Temperature | 1 | 12 |
| Oscillations | 1 | 12 |
| Astronomy and cosmology | 1 | 11 |
| Quantum physics | 1 | 10 |
| Nuclear physics | 1 | 10 |
| Motion in a circle | 1 | 9 |
| Capacitance | 1 | 9 |
| Gravitational fields | 1 | 7 |
Questions in 9702/42 Feb/March 2025
- Question 1
A steel ball is placed on the inside surface of a hollow circular cone. The ball moves in a horizontal circle at constant speed, as shown in Fig. โฆ
- Question 2
(a) The magnitude of the gravitational potential on the surface of a planet of radius R is ฯ. The planet can be considered to be an isolated sphere. On Fig. 2.1, sketch the variation of the gravitational potential with distance โฆ
- Question 3
(a) Two metal cuboids P and Q are in thermal contact with each other. (i) P and Q are in thermal equilibrium. State what is meant by the term thermal equilibrium. (ii) Data for P and Q are given in โฆ
- Question 4
A small crystal is made to vibrate with simple harmonic motion. The variation with time t of the displacement x of one surface of the crystal from its equilibrium position is shown in Fig. โฆ
- Question 5
(a) A capacitor of capacitance C1 is connected in series with a second capacitor of capacitance C2. Show that the combined capacitance C of the two capacitors is given by โฆ
- Question 6
An electric field and a magnetic field are used to form a velocity selector. Charged particles, called ions, pass into a region of uniform electric and magnetic fields that is between parallel plates, as shown in Fig. โฆ
- Question 7
(a) State Faradayโs law of electromagnetic induction. (b) A metal rod is accelerated uniformly from rest in a uniform magnetic field as shown in Fig. 7.1. direction of acceleration magnetic field into page rod Fig. 7.1 The rod has length โฆ
- Question 8
(a) State what is meant by a photon. (b) A laser emits red light of a single wavelength. The light is produced when electrons move from a higher energy level to a lower energy level. The difference in energy between โฆ
- Question 9
Poloniumโ193 (193 84Po) is an unstable nuclide. A nucleus of poloniumโ193 decays to a nucleus of leadโ189 (189 82Pb) by emitting an alphaโparticle. (a) Radioactive decay is both random and spontaneous. State what is meant by: (i) random (ii) spontaneous. โฆ
- Question 10
(a) (i) State what is meant by the luminosity of a star. (ii) Explain how standard candles are used to determine the distance to a galaxy. (b) The Sun rotates on its axis. Points X, Y and Z are on โฆ