Cambridge IGCSE · 0625 · Paper 4 · Theory (Extended)
Physics 0625/43 Oct/Nov 2021 past paper
Cambridge IGCSE Physics (0625) Paper 4 (Theory (Extended)), variant 3, Oct/Nov 2021: the question paper and its official mark scheme, 11 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 11
- Marks
- 80
- Grade A from
- 40
File names: 0625_w21_qp_43 · 0625_w21_ms_43
Grade thresholds for 0625/43 Oct/Nov 2021
The minimum raw marks Cambridge set for each grade on this component (out of 80). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|
| 40 | 32 | 22 | 18 | 13 | 9 | 5 |
Topics in this paper
Which syllabus chapters 0625/43 Oct/Nov 2021 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0625/43 Oct/Nov 2021
- Question 1
A ship sails in a straight line between two ports. Fig. 1.1 shows the speed–time graph of the ship for the first 100 minutes of its journey between the two ports. …
- Question 2
Fig. 2.1 shows a simplified version of a ‘gravity lamp’. This apparatus is used to light a light-emitting diode (LED) without mains electricity. LED attachment to ceiling generator strap 12 kg load Fig. 2.1 The load of 12 kg is …
- Question 3
(a) A gas bubble is released at the bottom of a lake. Atmospheric pressure is …
- Question 4
Explain what happens to the pressure of a constant volume of air when the temperature of the air increases. Use ideas of momentum of molecules in your explanation.
- Question 5
(a) An aluminium saucepan and a steel saucepan have the same dimensions. Table 5.1 shows the values of the specific heat capacity and the density of aluminium and of steel. Table 5.1 metal specific heat capacity J / (kg °C) …
- Question 6
(a) Describe an experiment to determine the speed of sound in air. State the apparatus you need, details of how to take measurements and how to calculate the speed of sound in air. You may use the space below to …
- Question 7
(a) Fig. 7.1 shows a ray of green light emerging from one face of a glass prism. ray of green light prism Fig. 7.1 (i) On Fig. 7.1, draw the path of the green light entering and passing through the …
- Question 8
(a) Fig. 8.1 shows two charged metal plates with a gap between them. The plates are parallel to each other. The top plate is negatively charged and the bottom plate is positively charged. …
- Question 9
Fig. 9.1 shows current–potential difference (p.d.) graphs for a resistor, a thermistor and a filament lamp. …
- Question 10
(a) A transformer has 500 turns on the primary coil and 25 turns on the secondary coil. The input voltage is …
- Question 11
(a) A detector of radioactivity is placed in a laboratory where there are no radioactive samples. A student notices that the detector shows a count rate that varies between 20 counts / min and 24 counts / min. (i) Suggest …
Other Physics papers from Oct/Nov 2021
- 0625/11 Multiple choice (Core)
- 0625/12 Multiple choice (Core)
- 0625/13 Multiple choice (Core)
- 0625/21 Multiple choice (Extended)
- 0625/22 Multiple choice (Extended)
- 0625/23 Multiple choice (Extended)
- 0625/41 Theory (Extended)
- 0625/42 Theory (Extended)
- 0625/61 Alternative to Practical
- 0625/62 Alternative to Practical
- 0625/63 Alternative to Practical