The Colors of Light in Science
The Colors of Light
6
th
grade Science Department
Light Prisms
•
These are a tool that use refraction to
spread out the different wavelengths which
make up white light
White Light
•
White light is all the colors of visible light
combined together
This diagram
demonstrates
white light
entering a prism
and separating
all the colors of
light.
Colors of Light
•
Each wavelength creates a different color (This
means that each color of light bends at a
different angle)
•
Two factors determine the color of an object:
–
Wavelengths that the
object reflects/absorbs
-- Wavelengths present
in light that shines on
object
Primary Colors of Light
•
Three colors of light produce all the colors
–
Red
–
Green
–
Blue
Electromagnetic Spectrum
•
The range of all electromagnetic
frequencies
•
Usually represented in a diagram
Visible Light
•
The part of the electromagnetic spectrum
that human eyes can see
•
Longest wavelengths are red and the
shortest are violet
ROY G BIV
The 7 colors of visible light are
–
Red
–
Orange
–
Yellow
–
Green
–
Blue
–
Indigo
–
violet
Reflection & Absorption
Visible light can either be reflected or absorbed
1.
If it is
reflected
then the wave bounces back
after striking the object
2.
If it is
absorbed
then
the wave is taken in
by the object and
its energy is changed
to something new
Dive into the world of light and color with insights on prisms, white light, primary colors, and the electromagnetic spectrum. Understand how wavelengths determine the color of objects and learn about reflection and absorption of visible light.
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Presentation Transcript
The Colors of Light 6thgrade Science Department
Light Prisms These are a tool that use refraction to spread out the different wavelengths which make up white light
White Light White light is all the colors of visible light combined together This diagram demonstrates white light entering a prism and separating all the colors of light.
Colors of Light Each wavelength creates a different color (This means that each color of light bends at a different angle) Two factors determine the color of an object: Wavelengths that the object reflects/absorbs -- Wavelengths present in light that shines on object
Primary Colors of Light Three colors of light produce all the colors Red Green Blue
Electromagnetic Spectrum The range of all electromagnetic frequencies Usually represented in a diagram
Visible Light The part of the electromagnetic spectrum that human eyes can see Longest wavelengths are red and the shortest are violet
ROY G BIV The 7 colors of visible light are Red Orange Yellow Green Blue Indigo violet
Reflection & Absorption Visible light can either be reflected or absorbed 1. If it is reflected then the wave bounces back after striking the object 2. If it is absorbed then the wave is taken in by the object and its energy is changed to something new
