Physics Light

Physics Light

1. Dispersion

   • Light from the sun looks
     • White
       • But really its all the colours of the spectrum
         • We only see
           • White
             • Because the light is travaling way too FAST
               • And Thats where this comes in
                 • • The Light goes through the prism and slows down
                     • This Is called...
                       • DISPERSION

2. Refraction

   • And no, all you minecraft nerds its not this guy..
     • • When a light enters a prism it sort of changes direction
         • because it slows down

3. Filters

   • As you (should) already know the suns light is all the colours of the spectrum
     • But when it goes through a filter
       • the filter blocks out a lot of colours
         • But it keeps one or two
           • and thats why through a red filter
             • you can only see red
               • ALSO
                 • if you put two filters together you can SOMETIMES see black
                   • Thats when the two filters let in different colours
                     • e.g if you had a
                       • Blue Filter
                         • and a
                           • Red filter
                             • you could only see
                               • Black
                                 • because blue blocks out red light
                                   • and red blocks out blue light
                                     • but if say it was
                                       • a green filter
                                         • and a yellow filter
                                           • you would be able to see yellow
                                             • because
                                               • green filters let through yellow and green
                                                 • and yellow filters let yellow light through

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