Cambridge IGCSE ยท 0625 ยท Paper 4 ยท Theory (Extended)
Physics 0625/43 Oct/Nov 2025 past paper
Cambridge IGCSE Physics (0625) Paper 4 (Theory (Extended)), variant 3, Oct/Nov 2025: the question paper and its official mark scheme, 10 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 10
- Marks
- 80
- Grade A from
- 46
File names: 0625_w25_qp_43 ยท 0625_w25_ms_43
Grade thresholds for 0625/43 Oct/Nov 2025
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 |
|---|---|---|---|---|---|---|
| 46 | 37 | 27 | 22 | 17 | 13 | 9 |
Topics in this paper
Which syllabus chapters 0625/43 Oct/Nov 2025 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Earth & the Solar System | 2 | 13 |
| Motion | 1 | 11 |
| Electromagnetic spectrum | 1 | 10 |
| Electromagnetic effects | 1 | 10 |
| Density | 1 | 9 |
| Electric circuits | 1 | 9 |
| Radioactivity | 1 | 7 |
| Energy, work & power | 1 | 6 |
| Momentum | 1 | 5 |
Questions in 0625/43 Oct/Nov 2025
- Question 1
(a) A hard ball is dropped vertically downwards. Fig. 1.1 shows the speedโtime graph for the ball from when it is dropped until it hits the ground. Air resistance is ignored. โฆ
- Question 2
A cricket ball is travelling at a speed of โฆ
- Question 3
(a) Fig. 3.1 shows a Sankey diagram for the power transfer in a coalโfired power station. power input from fuel = 3400 MW power wasted in power station due to thermal energy transfers = 2200 MW power used in power โฆ
- Question 4
(a) (i) A rectangular glass tank contains 3.0 m3 of liquid. The mass of the liquid is 2800 kg. Calculate the density of the liquid. density = (ii) A metal block is placed in the tank and it sinks to โฆ
- Question 5
(a) (i) Electromagnetic waves have many uses. On Fig. 5.1 draw one line from each use to the region of the electromagnetic (eโm) spectrum it uses. Use Region of eโm spectrum security marking gamma rays Bluetooth ultraviolet optical fibres infrared โฆ
- Question 6
(a) Fig. 6.1 shows a circuit which includes an LDR (lightโdependent resistor). โฆ
- Question 7
Fig. 7.1 shows a simple a.c. generator. N coil slip rings handle S coil brush front Fig. โฆ
- Question 8
(a) Alpha (ฮฑ) particles are directed at a very thin sheet of gold foil. The following observations provide evidence for the nuclear model of the atom. State what conclusions may be made about the model of the atom from these โฆ
- Question 9
(a) Cosmic microwave background radiation (CMBR) can be observed in every direction in space around us. (i) State when CMBR was produced. (ii) State and explain how the wavelength of this radiation has changed since it was formed. (b) Table โฆ
- Question 10
(a) Sketch a diagram to show the orbital path of a comet around the Sun. Mark the position of the Sun on your diagram using an S. (b) Draw a cross on your diagram to show where the comet is โฆ
Other Physics papers from Oct/Nov 2025
- 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