Cambridge A Level ยท 9702 ยท Paper 4 ยท A Level structured questions
Physics 9702/42 Feb/March 2022 past paper
Cambridge A Level Physics (9702) Paper 4 (A Level structured questions), variant 2, Feb/March 2022: the question paper and its official mark scheme, 12 questions worth 100 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 12
- Marks
- 100
- Grade A from
- 56
File names: 9702_m22_qp_42 ยท 9702_m22_ms_42
Grade thresholds for 9702/42 Feb/March 2022
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 |
|---|---|---|---|---|
| 56 | 48 | 38 | 27 | 15 |
Topics in this paper
Which syllabus chapters 9702/42 Feb/March 2022 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Quantum physics | 2 | 16 |
| Nuclear physics | 1 | 11 |
| Motion in a circle | 1 | 10 |
| Thermodynamics | 1 | 10 |
| Gravitational fields | 1 | 10 |
| Capacitance | 1 | 10 |
| Magnetic fields | 1 | 7 |
| Medical physics | 1 | 7 |
| Astronomy and cosmology | 1 | 7 |
| Electric fields | 1 | 6 |
| Alternating currents | 1 | 6 |
Questions in 9702/42 Feb/March 2022
- Question 1
(a) The point P in Fig. 1.1 represents a point mass. On Fig. 1.1, draw lines to represent the gravitational field around P. P Fig. โฆ
- Question 2
A fixed mass of an ideal gas has a volume V and a pressure p. The gas undergoes a cycle of changes, X to Y to Z to X, as shown in Fig. โฆ
- Question 3
A small wooden block (cuboid) of mass m floats in water, as shown in Fig. 3.1. wooden block mass m water density ฯ Fig. 3.1 The top face of the block is horizontal and has area A. The density of โฆ
- Question 4
(a) State what is represented by an electric field line. (b) Two point charges P and Q are placed 0.120 m apart as shown in Fig. โฆ
- Question 5
The variation with potential difference V of the charge Q on one of the plates of a capacitor is shown in Fig. โฆ
- Question 6
A small solenoid of area of cross section โฆ
- Question 7
(a) Alternating current (a.c.) is converted into direct current (d.c.) using a full-wave rectification circuit. Part of the diagram of this circuit is shown in Fig. 7.1. d.c. output a.c. input Fig. 7.1 (i) Complete the circuit in Fig. 7.1 โฆ
- Question 8
(a) State the formula for the de Broglie wavelength ฮป of a moving particle. State the meaning of any other symbol used. (b) Electrons accelerate through a potential difference, pass through a thin crystal and are then incident on a โฆ
- Question 9
Polonium-211 (211 84Po) decays by alpha emission to form a stable isotope of lead (Pb). (a) Complete the equation for this decay. 211 84Po Pb โฆ
- Question 10
In an X-ray tube, electrons are accelerated through a potential difference of 75 kV. The electrons then strike a tungsten target of effective mass 15 g. The electron energy is converted into the energy of X-ray photons with an efficiency โฆ
- Question 11
Positron emission tomography (PET scanning) obtains diagnostic information from a person. The information is used to form an image. (a) PET scanning uses a tracer. Explain what is meant by a tracer. (b) PET scanning involves annihilation. (i) Explain what โฆ
- Question 12
(a) State what is meant by luminosity of a star. (b) The luminosity of the Sun is โฆ