light and c o l o r
DESCRIPTION
Light and c o l o r. When light strikes an object. When light strikes an object it can do one of three things. Reflected. Absorbed. Transmitted. Why you shouldn’t wear black t-shirts in the summer!. Transparent, Translucent, & Opaque. Transparent – light passes through; clear - PowerPoint PPT PresentationTRANSCRIPT
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LIGHT AND COLOR
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When light strikes an object When light strikes an object it can do
one of three things.
•Light passes through objecttransmitt
ed
•Light bounces off object
reflected
•Light does not pass through or reflect
absorbed
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Refle
cted Absorbed
Transmitte
d
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Why you shouldn’t wear black t-shirts in the summer!
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Transparent, Translucent, & Opaque Transparent – light passes through;
clear Translucent – scatters light as it
passes through, details are blurred Opaque – reflects or absorbs ALL of
the light; cannot see through it
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Transparent vs. Translucent
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The Color of Objects
The color of an object depends on the material of the object and the color of light striking it.
OPAQUE OBJECTS: they are the color of the light they REFLECT.
TRANSPARENT & TRANSLUCENT OBJECTS: they are the color of light they TRANSMIT.
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OPAQUE OBJECTS – REFLECT!!
Bananas are yellow because they REFLECT yellow light!
Leaves are green because thechlorophyll in leavesreflect green light andabsorb the other colors.
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TRANSPARENT & TRANSLUCENT - TRANSMIT
Filter appears green
because it TRANSMIT
S only green light.
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What color does it appear to be?
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Colored glass transmit they color they appear!
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The colors of objects can change under different color lights.
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Mixing Colors of LIGHT The primary colors of light are:RED, GREEN, and BLUE.When they are mixed in equal
amounts they combine to make WHITE light.
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Mixing Colors of PIGMENTS
Inks, dyes and paints contain PIGMENTS.
The primary colors of pigments are:MAGENTA, YELLOW and CYANWhen pigments are added
together, Fewer colors of light are reflected (more are absorbed). For this reason, it is called SUBTRACTIVE.
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Notice they mix to make BLACK!
Black absorbs allcolors of light!
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LIGHT vs. PIGMENTS
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Adios!