AQA GCSE Physics revision questions on Half-lives and the random nature of radioactive decay

A few short questions here and a few videos to watch. Specification page 40

  1. Copy and complete: Radioactive decay is _____________. 
  2. Copy and complete this paragraph: The half-life of a radioactive isotope is the time it takes for the number of __________ of the isotope in a _________________, or the time it takes for the count rate (or activity) from a sample containing the isotope to fall to half its ________________. 
  3. Watch these videos which tell you how to calculate half-life. and

Audio Answers


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