Cambridge A Level ยท 9702 ยท Paper 4 ยท A Level structured questions
Physics 9702/41 Oct/Nov 2018 past paper
Cambridge A Level Physics (9702) Paper 4 (A Level structured questions), variant 1, Oct/Nov 2018: the question paper and its official mark scheme, 10 questions worth 84 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 10
- Marks
- 100
- Grade A from
- 62
File names: 9702_w18_qp_41 ยท 9702_w18_ms_41
Grade thresholds for 9702/41 Oct/Nov 2018
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 |
|---|---|---|---|---|
| 62 | 53 | 42 | 32 | 20 |
Topics in this paper
Which syllabus chapters 9702/41 Oct/Nov 2018 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Magnetic fields | 2 | 17 |
| Nuclear physics | 1 | 11 |
| Medical physics | 1 | 10 |
| Thermodynamics | 1 | 9 |
| Electric fields | 1 | 9 |
| Quantum physics | 1 | 9 |
| Gravitational fields | 1 | 7 |
| Oscillations | 1 | 7 |
| Temperature | 1 | 5 |
Questions in 9702/41 Oct/Nov 2018
- Question 1
(a) (i) State what is meant by gravitational potential at a point. (ii) Suggest why, for small changes in height near the Earthโs surface, gravitational potential is approximately constant. (b) The Moon may be considered to be a uniform sphere โฆ
- Question 2
(a) State what is meant by the internal energy of a system. (b) An ideal gas undergoes a cycle of changes as shown in Fig. โฆ
- Question 3
A U-tube contains liquid, as shown in Fig. 3.1. liquid liquid โฆ
- Question 4
(a) Explain the main principles behind the use of ultrasound to obtain diagnostic information about internal body structures. (b) (i) Define specific acoustic impedance. (ii) The fraction of the incident intensity of an ultrasound beam that is reflected at a โฆ
- Question 6
(a) (i) Define electric potential at a point. (ii) State the relationship between electric potential and electric field strength at a point. (b) Two parallel metal plates A and B are situated a distance 1.2 cm apart in a vacuum, โฆ
- Question 8
(a) Explain what is meant by a magnetic field. (b) A particle has mass m, charge +q and speed v. The particle enters a uniform magnetic field of flux density B such that, on entry, it is moving normal to โฆ
- Question 9
(a) State Faradayโs law of electromagnetic induction. (b) A solenoid S is wound on a soft-iron core, as shown in Fig. โฆ
- Question 10
Some of the electron energy bands in a semiconductor material at the absolute zero of temperature are shown in Fig. 10.1. conduction band (empty) forbidden band valence band (filled) Fig. 10.1 Use band theory to explain why, as the temperature โฆ
- Question 11
A stationary isolated nucleus emits a ฮณ-ray photon of energy 0.51MeV. (a) State what is meant by a photon. (b) For the ฮณ-ray photon, calculate (i) its wavelength, wavelength = m (ii) its momentum. momentum โฆ
- Question 12
(a) State what is meant by radioactive decay. (b) The variation with time t of the number N of undecayed nuclei in a sample of a radioactive isotope is shown in Fig. โฆ
Other Physics papers from Oct/Nov 2018
- 9702/11 Multiple choice
- 9702/12 Multiple choice
- 9702/13 Multiple choice
- 9702/21 AS structured questions
- 9702/22 AS structured questions
- 9702/23 AS structured questions
- 9702/42 A Level structured questions
- 9702/43 A Level structured questions
- 9702/51 Planning, analysis & evaluation
- 9702/52 Planning, analysis & evaluation
- 9702/53 Planning, analysis & evaluation