We counted every question in our own IGCSE Physics 0625 question bank — 3,557 questions worth 3,830 marks, 2019 to 2026 — and sorted them into the 24 chapters of the syllabus. Light carries the most marks.
Every chapter, heaviest first
| Chapter | Questions | Marks | Share | |
|---|---|---|---|---|
| Light | 243 | 337 | 8.8% | |
| Motion | 217 | 307 | 8.0% | |
| Electric Circuits | 246 | 297 | 7.8% | |
| Radioactivity | 212 | 268 | 7.0% | |
| Forces | 224 | 257 | 6.7% | |
| Electromagnetic Effects | 240 | 248 | 6.5% | |
| Energy, Work and Power | 224 | 243 | 6.3% | |
| Kinetic Particle Model of Matter | 212 | 225 | 5.9% | |
| Electrical Quantities | 191 | 223 | 5.8% | |
| Thermal Properties and Temperature | 122 | 164 | 4.3% | |
| General Properties of Waves | 151 | 158 | 4.1% | |
| Transfer of Thermal Energy | 120 | 142 | 3.7% | |
| The Nuclear Model of the Atom | 116 | 127 | 3.3% | |
| The Earth and the Solar System | 56 | 127 | 3.3% | |
| Momentum | 76 | 126 | 3.3% | |
| Stars and the Universe | 63 | 116 | 3.0% | |
| Sound | 142 | 99 | 2.6% | |
| Pressure | 119 | 93 | 2.4% | |
| Simple Phenomena of Magnetism | 122 | 89 | 2.3% | |
| Electromagnetic Spectrum | 64 | 56 | 1.5% | |
| Density | 97 | 54 | 1.4% | |
| Physical Quantities and Measurement Techniques | 91 | 35 | 0.9% | |
| Electrical Safety | 89 | 31 | 0.8% | |
| Mass and Weight | 120 | 8 | 0.2% |
The top 7 of 24 chapters hold half the marks in the bank. The three heaviest are Light, Motion, Electric Circuits. The lightest is Mass and Weight, at 0.2% of the marks.
Inside the chapters
| Sub-topic | Chapter | Questions | Marks |
|---|---|---|---|
| Half-life | Radioactivity | 81 | 160 |
| Thin lenses and images | Light | 60 | 144 |
| Energy resources and generating electricity | Energy, Work and Power | 48 | 133 |
| The transformer | Electromagnetic Effects | 78 | 123 |
| Speed–time graphs | Motion | 85 | 122 |
| Current and potential difference in circuits | Electric Circuits | 54 | 117 |
| Reflection, refraction and diffraction of waves | General Properties of Waves | 50 | 103 |
| Nuclide notation and isotopes | The Nuclear Model of the Atom | 49 | 103 |
| Gas pressure, volume and temperature | Kinetic Particle Model of Matter | 70 | 101 |
| Specific heat capacity | Thermal Properties and Temperature | 52 | 97 |
How to use this
Revise the heaviest chapters first. A chapter worth 9% of the marks deserves more than one worth 0.2%.
Use it to decide what to practise, not what to skip. A light chapter can still be the difference between two grades, and Cambridge can set anything on the syllabus.
Check yourself chapter by chapter rather than by whole papers, so a weak topic shows up while there is still time to fix it.
These are ExamYard’s own figures: the questions in our IGCSE Physics 0625 question bank, grouped into the chapter of the syllabus each one tests, and added up by the marks each carries. No question text, mark scheme or examiner report is reproduced on this page. The printed book and the online bank are counted separately, so the totals on this page need not match the book’s own page.