Difference between revisions of "4-WAV-04"
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Revision as of 10:53, 29 August 2009
Contents
Outcomes
- Pupils can recall the different sections of the electromagnetic spectrum in order.
- Pupils can recall and explain the uses and dangers of each section of the EM spectrum.
Specification References
Starter
Main Body of Lesson
Uses
- Radio - communication
- Microwave - communication, energy transfer (e.g. microwave oven, solar satellite)
- Infrared - thermal energy transfer, night vision
- Visible
- Ultraviolet - sterilisation, tanning,
- X-ray - medical (diagnosis), x-ray diffraction (crystallography)
- Gamma ray - sterilisation, medical (treatment)
Dangers
- Radio - negligible hazard
- Microwave - negligible hazard, internal heating
- Infrared - surface heating
- Visible
- Ultraviolet - blindness, sunburn
- X-ray - blindness, cancers (mutation)
- Gamma ray - blindness, cancers (mutation)
Plenary
Homework
Additional Information
Resources Required
- EM spectrum circus