481·Physics · GCSE
Random, but
Perfectly Predictable
Radioactivity knowledge mat for secondary schools (PDF)
If nobody can say which nucleus decays next, how can a half-life be known to the second? The nucleus and isotope notation; alpha, beta and gamma, with penetration and ionising power drawn running opposite ways; half-life, fission and fusion; six distinctions that decide an answer, from contamination to background radiation; a worked decline as a ratio. Ten terms to define, a model answer on why alpha is worst inside the body, and the misconceptions that cost marks.
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One purchase covers the school that buys it. Print it, copy it, hand it round your department. Not for passing to other schools or uploading anywhere.
One landscape A4 page on one topic, led by the figures and photographs rather than the headings. It carries the nucleus and isotopes, alpha, beta and gamma against penetration and ionising power, half-life and fission and fusion, six deciding distinctions and a worked decline as a ratio — then the vocabulary, a worked exam-style answer and the misconceptions that cost marks.
Every photograph on the sheet is a real archival or scientific image, not an illustration and not AI-generated; every diagram is drawn in code for the sheet. Each image was checked against its own licence template rather than a label, and the running foot names every creator, states that the images have been cropped and adjusted for print, and links the licence — so the sheet can be photocopied for a class and stay compliant. Every claim is sourced to the DfE subject content, and nothing is reproduced from a past paper, a textbook or a specification.
Sold by subject: all four physics sheets for one price. A knowledge organiser stores a unit and is revised from afterwards; this is meant to be on the table while the work is happening.
- Written to The DfE GCSE subject content for physics (DFE-00353-2014). Every photograph is a sourced archival or scientific image, licensed for reuse and credited on the sheet; every diagram is drawn in code for the sheet
- Intended for physics teachers — on the desk during the lesson, not a student revision guide
- Extent 1 page · 8 sections
—·Look inside
Real pages, straight from the PDF
Click any page to see it full size.
—·Contents
All 8 sections
Taken from the booklet’s own contents page, so the page numbers are the real ones.