Physics Light

Dispersion
1. Light from the sun looks
  1. White
    1. But really its all the colours of the spectrum
      1. 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
Refraction
1. And no, all you minecraft nerds its not this guy..
  1. 1. When a light enters a prism it sort of changes direction
      1. because it slows down
Filters
1. As you (should) already know the suns light is all the colours of the spectrum
  1. But when it goes through a filter
    1. the filter blocks out a lot of colours
      1. 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

Resumen del Recurso

	Creado por Tom Rodricks hace más de 7 años