Energy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural Resources
2.7 understanding the em sprecturm
1. 6.6 Electromagnetic Waves
January 29, 2015
Think about:
•How well behaved you are
•How good you are at science
•How much you like chocolate hob
nobs
2. Aims
• Describe visible light as part of the
electromagnetic spectrum
• State other types of radiation
13. Light vs Sound
Example of wave
LIGHT SOUND
Type of wave
Speed in air /
km/s
Material of
medium
14. Light vs Sound
Example of wave
LIGHT SOUND
Type of wave Transverse Longitudinal
Speed in air /
km/s
300 000 340
Material of
medium
No material
required
Solid, liquid, gas
15. Example of wave
LIGHT SOUND
Type of wave
Speed in air /
km/s
Material of
medium
Example of wave
LIGHT SOUND
Type of wave
Speed in air /
km/s
Material of
medium
35. Gamma rays
• Make Hulks, sterilise food and utensils,
tracers, radiotherapy
36. RECALL THE DETRIMENTAL EFFECTS OF
EXCESSIVE EXPOSURE OF THE HUMAN
BODY TO ELECTROMAGNETIC WAVES
3.13
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42. Make an EM spectrum booklet
Guest starring Mr. Simon Porter
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59. The EM spectrum
• You now have seven sections to fill in with
information regarding the seven types of
electromagnetic radiation
• Include uses, dangers, detectors, examples
and origins if you can
• The better you make it the better it will help
your revision