GCSE Physics

Atoms & Nuclear Radiation

Year 11, unit 1. The classwork book for the ten lessons, with one booklet for each lesson. Use it in lessons, then revise from it at home with the slide deck and simulations.

Workbook and answers

Prep

A one-page homework after every two lessons: up to three Do Now questions from earlier lessons, then short questions on the key ideas of the latest lessons. Each is out of 10.

Prep 1: Inside the atomAfter Lessons 1–2, 1 page, 10 marksProtons, neutrons and electrons, atomic and mass numbers, isotopes and ions.Prep PDF
Prep 2: From plum pudding to the nucleusAfter Lessons 3–4, 1 page, 10 marksThe plum pudding model, alpha scattering, the nuclear model, energy levels.Prep PDF
Prep 3: Radioactive decay and nuclear equationsAfter Lessons 5–6, 1 page, 10 marksUnstable nuclei, activity and count-rate, alpha, beta and gamma, balancing equations.Prep PDF
Prep 4: Using radiation and half-lifeAfter Lessons 7–8, 1 page, 10 marksIonising power, range and penetration, choosing a source, half-life from a graph.Prep PDF
Prep 5: Half-life sums and staying safeAfter Lessons 9–10, 1 page, 10 marksCounting half-lives, net decline as a ratio, contamination and irradiation.Prep PDF

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