Light beams with color filters and
diffraction gratings
Set up the light station, and make these three investigations.
What happens to the light beam when it encounters a colored filter?
Then what happens to it when it encounters another filter of a different
color?
Orient a diffraction grating so that when you look
through it at a light, the spectrum is spread out horizontally.
What do you think will happen when it is placed in the light
beam? Predict first! Then try it!
Predict what will happen to the pattern made by the diffraction grating
in the beam, if you place a colored filter in the beam. Does
it matter whether the diffraction grating or the filter comes first?
Predict first, then try it.
Write out a description of what you learned about diffraction gratings
and colored filters in this activity. Your
description should also include an explanation of how a color filter
alters light. For instance, does a red filter make
blue light become red?
All done? Science content: light beams
What do you think will happen when it is placed in the light
beam? Predict first! Then try it!
Write out a description of what you learned about diffraction gratings
and colored filters in this activity. Your
description should also include an explanation of how a color filter
alters light. For instance, does a red filter make
blue light become red?