Visible Light
One Section of the Electromagnetic Spectrum
What is Visible Light?
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Electromagnetic waves that
you can see
Made up of the colors red,
orange, yellow, green,
blue, and violet
When all the colors are
combined the waves appear
white in color
Where is it found on the Electromagnetic Spectrum?
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Visible light waves are found between infrared waves and
ultraviolet waves.
They have shorter wavelengths and higher frequencies that
infrared waves, but longer wavelengths and lower
frequencies than ultraviolet waves.
Other Facts/Uses
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Red visible light waves have the longest wavelength and
lowest frequency
Violet visible light waves have the shortest wavelength
and highest frequency
Prisms can refract visible white light and separate it
into its individual colors
Objects look a certain color because that wavelength of
light is reflected back to us. All other colors are
absorbed.
Examples/Where Visible Light is Found
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Rays from the sun
Incandescent, CFL, and LED lightbulbs
Colors reflecting off an object
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Ex: a red apple reflects red visible light waves
Ex: a green shirt reflects green visible light waves
Now It’s Your Turn
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You will get into groups of 2 or 3
You will be assigned a section of the electromagnetic
spectrum (radio waves, microwaves, infrared Rays,
ultraviolet rays, x-rays, gamma rays)
You and your group will create a presentation similar to
the one you just saw--DUE Friday
All groups will present to the class on Friday