Interactive practical

Half-life of a model radioactive source

Throw 120 dice fifteen times, removing the sixes as decays, then plot the number remaining against throw number and read two half-lives from the curve.

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Practice: Modelling radioactive half-life

WJEC 3420QS — this practical matches your selected course; the questions check the method, data handling and practical skills.

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6 additional questions require GCSE Physics Premium access.

2 of 2 available questions match the selected filters. This session contains 2 questions.

Question 1 · 1 mark · Foundation · Practical · Diagnostic

In the dice model, what does a die showing a six represent?

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Question 2 · 3 marks · Standard · Practical · Practical method

Explain why dice are a good model for radioactive decay.