Red shift- space physics
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Includes waves
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8 Terms
1
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What is a doppler effect?
The change in the wavelength and frequency caused by the movement of the wave source.
2
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What colours are in the electromagnetic waves?
Red
Orange
Yellow
Green
Blue
Indigo
Violet
3
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What colour in the electromagnetic waves has the shortest wave length?
Violet
4
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What colour in electromagnetic waves has the longest wavelength?
Red
5
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What colour is the middle electromagnetic wave?
Green
6
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What colour light are galaxies when they move away?
Red
7
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What colour light are galaxies when they are close?
Blue
8
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What is red shift?
the wavelength of the light is stretched, so the light is seen as 'shifted' towards the red part of the spectrum.
Note 
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