Science Light and Color

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complementary colors

any 2 colors of light that when mixed together in equal intensities produce white

combining the three primary colors of pigments in equal amounts produces

black

which color crayon absorbs all wavelengths of light

black

mixing together 2 or 3 primary colors of light with varying degrees of __________________ can produce a wide range of colors

intensity

what color would the blue crayon be if a green light were shined on it

it would turn black because green light is being absorbed, and there is no more blue light shining on it

red+blue

magenta

As pigments are added together...

more colors of light are absorbed

does color reside in an object?

no, it depends on the light that shines on the object

for light, what are the three primary colors

red, blue, and green

secondary colors of pigments

red, green, blue

when light strikes an object, the light can be

reflected, transmitted, or absorbed

the color of an opaque object is the color of the light it

reflects

absorption

the transfer of energy by a wave to the medium it is traveling through

what is different about the wavelengths absorbed by the green crayon and the wavelength absorbed by the red crayon?

they reflect or absorb different colors

primary colors

three colors that combine to make any other color

the color of a transparent or translucent object is the color of the light it __________________

transmits

examples of transparent objects

water, air, clear glass

examples of translucent

wax paper, frosted glass

green+magenta

white

red+cyan

white

red+green+blue

white

examples of opaque

wood, metals

red+green

yellow

characteristics of opaque

you cannot see through it

Blue glass appears blue because

It transmits blue and absorbs all other colors

opaque

a material that reflects or absorbs all of the light that strikes it

the color of an apple (opaque) appears to be also dependent on the _________ of the light that strikes it

color

green+blue

cyan

which crayon would reflect only red wavelengths of light?

red

what color would the white crayon be if a red light were shined on it

red, because white reflects all colors so by placing a red light on it, it would reflect more of the red

transmission

the passage of light through an object

blue+yellow

white

secondary colors of light

yellow, magenta, cyan

characteristics of transparent objects

you can clearly see what is on the other side

characteristics of translucent materials

you can see something behind it but the details are blurred

transparent

a material that allows light to pass through (be transmitted) without being scattered

translucent

a material that scatters the light that passes through it

what do pigments do with oclors

absorb some and reflect others

opaque objects do what with wavelengths

absorb some wavelengths of light and reflect others

pigments

colored substances found in inks, paints, and dyes used to color other materials

3 primary colors of pigments

cyan, magenta, yellow

secondary colors

formed from combining two primary colors in equal amounts


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