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WalesCombined ScienceQuick questions
Unit 6 Physics 2: Space and radioactivity
Quick questions on Half-life - WJEC GCSE Science Double Award (Unit 6)
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
What is the half-life of a radioactive source? [1 mark]
What is q2?Show answer
After 2 half-lives, what fraction of the original activity remains? [1 mark]
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