Chapter P3 - Radioactive Materials
Revision
- Half-life: be able to draw a graph, find the half-life from a graph, be able to state what half-life is, be able to calculate the actvity of a source after 2 or 3 half-lifes (activity halves in one half-life, is one quarter after 2 half-lifes and is one eighth after 3 half-lifes).
- Electrical Power Production: compare the steps for nuclear and fossil fuel, know what efficiency means and how to calculate the efficiency of an energy transfer, be able to interpret Sankey (energy flow) diagrams.
- There are some good quizzes on yacapaca (ask your teacher about this).
- Click here to download the revision powerpoint.
- Click here to download the specification (checklist) for chapter P3.
- Click here and here to download revision cards (from funnyscience.co.uk).
- Bitesize P3 revision page
- StudyStack revision
Background Radiation Dose in the UK
Some Youtube videos you might like
- It's Decay - includes alpha, beta and gamma decay, plus beta+ decay that we don't cover, but it's a good song.
- Types of radiation and penetrating power.
- Half-Life (based on Park Life) - Concentrates on GCSE, the singing is not brilliant and there is one error - background radiation is just radiation from materials that are around us all the time (e.g. from radon gas) and from cosmic rays (high energy particles from space).


