Chapter 18 Section 4 Assesment

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Why does combining equal amount of cyan, yellow and magenta paints form black?

As pigments are added together fewer colors of light are reflected and more are absorbed. The more pigments that are combined the darker the mixture looks.

Explain how prism separates white light into the colors of the spectrum.

As white light passes through a prism, shorter wavelengths refract more than longer wavelengths and the colors separate.

What three colors of pigments can combine to form any other color?

Cyan, Yellow and Magenta

What three colors of light can combine to form any other color?

Green, Red and Blue.

Explain how the process of dispersion of light forms a rainbow.

Light refracts as it passes in and out of water droplets, separating the colors of the rainbow.

What are pigments? Explain how different pigments affect light.

Pigments are materials that absorb some colors of light and reflects other colors. Also, each pigment reflects different colors.

What determines the color of an object?

The color of any object depends on what the object is made of and on the color of light that strikes the object.

What color would a blue wall appear under green light?

cyan


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