Mind map

Physics

Amy Stanton English

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Physics

Radio-activity
- infrared
  - emmisions from electromagnetic waves
- heat
  - body heat
sources of radiation
- medicine
- smoke detectors
- radiotherapy
- steralisation
effects of radiation
- harms living cells
alpha, beta and gamma
- gamma
  - no mass or charge
  - weakly ionisng
  - penetrate far materials
- beta
  - fast n small
  - moderately ionising
  - mid section between alpha n gamma
- alpha
  - helium nuclei
  - two nuetrons +protons
  - big heavy slow moving
  - strongly ionising