Waves

  • Created by: Ellie
  • Created on: 18-04-13 19:38
What does lambda equal?
wavelength
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What is the height of the waves?
amplitude
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What is the frequency?
The amount of complete waves per second
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What does 1 Herz equal?
1 wave/second
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What does frequency equal?
1 over period
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What does wave speed equal?
frequency times wavelength
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What waves are Transverse?
light and EM waves
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What waves are longitudinal?
Sound and ultra sound
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State in order the electromagnetic spectrum
Radio waves, micro waves, infra red radiation, visible light, ultra violet, X-rays and gamma rays
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What are radio waves used for?
Communications
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What is Infrared radiation used for?
heaters and night vision
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What are microwaves used for?
Cooking and satellite tv
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What is visible light used for?
optical fibres, photography, phones and broadband
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What is Ultraviolet light used for?
fluorescent lamps
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What are X-rays used for?
seeing inside things
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What are gamma rays used for?
Sterilising food and medical equipment
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What are the dangers of microwaves?
Heating body tissue
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What are the dangers of infra red radiation?
skin burns
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What are the dangers of ultra violet light?
damage surface cells, blindness and skin cancer
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What are the dangers of gamma rays?
cell mutation, tissue damage and cancer
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What are the dangers of X-rays?
cell mutations
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What does the angle of incidence equal?
angle of reflection
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What does Snells law say?
refractive index = sin (i) over sin (r)
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Other cards in this set

Card 2

Front

What is the height of the waves?

Back

amplitude

Card 3

Front

What is the frequency?

Back

Preview of the front of card 3

Card 4

Front

What does 1 Herz equal?

Back

Preview of the front of card 4

Card 5

Front

What does frequency equal?

Back

Preview of the front of card 5
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