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Edexcel · GCSE · Physics

Radioactivity
Practice Questions

15 Edexcel GCSE Physics questions on Radioactivity, each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Radioactivity.

Try 2 sample questions on Radioactivity

Question 1 · 1 mark · Difficulty 1/3

What is an alpha particle?

  1. A neutron
  2. An electron
  3. A helium nucleus (2 protons + 2 neutrons)
  4. A gamma ray
Show answer & explanation
✓ Answer: CA helium nucleus (2 protons + 2 neutrons)
Alpha particle: 2 protons + 2 neutrons (helium-4 nucleus). Charge: +2. Mass: 4. Stopped by paper. Most ionising but least penetrating.
Question 2 · 1 mark · Difficulty 1/3

What stops beta particles?

  1. Nothing can stop them
  2. Paper
  3. A few mm of aluminium
  4. Only thick lead
Show answer & explanation
✓ Answer: CA few mm of aluminium
Beta particles (high-speed electrons from the nucleus) are stopped by a few mm of aluminium. They are moderately ionising and penetrating.
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20 questions · 25 min · free

Edexcel GCSE Physics: Radioactivity FAQ

Is Kramizo free for Edexcel GCSE students preparing for Physics?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Radioactivity practice with other Physics topics or even switch to a totally different Edexcel subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Radioactivity questions aligned to the official Edexcel GCSE Physics syllabus?
Every question is written against the published Edexcel GCSE Physics specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real Edexcel paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from Edexcel.
How is Radioactivity typically tested on Edexcel GCSE Physics papers?
Radioactivity appears across multiple question types on real Edexcel GCSE Physics papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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