Physics 0625 · 5 Nuclear physics
5.2 Radioactivity
Detecting background radiation; distinguishing alpha, beta, and gamma emissions; calculating half-life; analyzing decay equations and safety precautions.
- Questions
- 562
- Years
- 2002–2026
- Multiple choice
- 357
- Written answer
- 205
- Average marks
- 3
Where this subtopic appears
- Paper 1variants 01, 11, 12, 13, 14212
- Paper 2variants 02, 21, 22, 23196
- Paper 3variants 03, 31, 32, 3392
- Paper 4variants 41, 42, 4362
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | 6 | 23 | – | 29 |
| 2025 | 1 | – | – | 1 |
| 2024 | – | – | 4 | 4 |
| 2023 | 6 | 18 | 20 | 44 |
| 2022 | 5 | 19 | 24 | 48 |
| 2021 | 5 | 18 | 25 | 48 |
| 2020 | 6 | 21 | 19 | 46 |
| 2019 | 6 | 19 | 19 | 44 |
| 2018 | 7 | 21 | 20 | 48 |
| 2017 | 6 | 19 | 22 | 47 |
| 2016 | 7 | 22 | 23 | 52 |
| 2015 | 3 | 15 | 12 | 30 |
| 2014 | – | 10 | 11 | 21 |
| 2013 | – | 5 | 10 | 15 |
| 2012 | – | – | 6 | 6 |
| 2011 | – | 8 | 6 | 14 |
| 2010 | – | 7 | 10 | 17 |
| 2009 | – | 2 | 5 | 7 |
| 2008 | – | 2 | 1 | 3 |
| 2007 | – | 3 | 4 | 7 |
| 2006 | – | 4 | 2 | 6 |
| 2005 | – | 4 | 4 | 8 |
| 2004 | – | 4 | 4 | 8 |
| 2003 | – | 3 | 4 | 7 |
| 2002 | – | – | 2 | 2 |
