AQA GCSE Physics Atomic Structure Notes for Separates and Combined

Please see below a sample version of these notes. They cover the following sub topics.

The structure of an atom
Mass number, atomic number and isotopes
The development of the model of the atom (common content with chemistry)
Radioactive decay and nuclear radiation
Nuclear equations
Half-lives and the random nature of radioactive decay
Radioactive contamination
Background Radiation
Different half-lives of radioactive isotopes
Uses of nuclear radiation
Nuclear Fission (Physics Only)
Nuclear Fusion (Physics Only)

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Revision Questions for Nuclear Fission and Nuclear Fusion – AQA GCSE Physics Higher Tier

These videos on mouse trap reactions to show chain reactions are fun

Make sure that you can answer these questions

1. What is meant by nuclear fission? 
2. Replace get to got for some of things you don’t want to do. E.g. I’ve got to revise so that I can do well in my exams. 
3. Is spontaneous fission common? 
4. How does fission occur? 
5. Copy and complete the following: The nucleus undergoing fission splits into two ___________ nuclei, roughly __——– in size, and emits two or _________ neutrons plus gamma rays. Energy is ___________ by the fission reaction.
6. What do all fission products have? 
7. What may the neutrons go on and start? 
8. How is the energy released controlled? 
9. Name one use of an uncontrolled chain reaction.
10. What is the joining of two light nuclei to form a heavier nucleus called? 
11. In this process what is some of the mass converted into? 

Audio Answers

Videos to help

AQA GCSE Physics Revision questions on Background radiation

Make sure that you can answer these questions

1. Give examples of natural sources of background radiation. 
2. Give examples of man-made sources of background radiation. 
3. What can the level of background radiation depend on? 
4. What can radiation dose depend on? 
5. What is the radiation dose measured in? 
6. How many Sieverts is 1000 millisieverts (mSv) equivalent to? 

These questions can be answered by looking at page 42 of the GCSE Physics Specification.

Audio Answers

An extract is given here

Videos to help