P1 Unit 2: The Electromagnetic Spectrum

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  • Created by: nicola
  • Created on: 16-04-15 23:51
How does the frequency, wavelenght and danger change?
As the frequency increases wavelenght decrease. As frequency increase danger increases. As wavelength incease danger decreases.
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How was infrared discovery? 1/2
Herschal split a beam of white light into a spectrum using a prism. Used thermometers to measure the temperature in each colour. Noticed that the temperature increased as he moved towards the red end of the visible spectrum.
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How was infrared discover? 2/2
Wondered if the pattern continued beyond red where there was no visible light. Measured just byond red. discovered it was even hotter. Concluded there must be invisible light below red that carried heat.
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How was ultraviolet discover? 1/3
Ritter split a beam of white light into a spectrum using a prism. Placed silver chloride in each colour of the spectrum and measured how quickly it changed colour.
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How was ultraviolet discover? 2/3
Noticed the silver chloride changed colour faster towards the violet end of the visible spectrum. wondered if the pattern continued beyond violet where there was no visible light. tested just beyond violet.
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Other cards in this set

Card 2

Front

How was infrared discovery? 1/2

Back

Herschal split a beam of white light into a spectrum using a prism. Used thermometers to measure the temperature in each colour. Noticed that the temperature increased as he moved towards the red end of the visible spectrum.

Card 3

Front

How was infrared discover? 2/2

Back

Preview of the front of card 3

Card 4

Front

How was ultraviolet discover? 1/3

Back

Preview of the front of card 4

Card 5

Front

How was ultraviolet discover? 2/3

Back

Preview of the front of card 5

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