SOUND AND LIGHT Chapter 3 The Nature of

SOUND AND LIGHT Chapter 3 The Nature of Light

Section 4 Light and Color

the passing of light through matter

Light is transmitted _____, _______, and reflected ____ absorbed when it strikes the glass of a window.

matter through which visible light is easily transmitted (air, glass, water) transparent

matter that transmits light but also scatters the light as it passes through (wax paper, frosted glass) translucent

matter that does not transmit any light (metal, wood, aluminum foil) opaque

seven colors of the visible light spectrum

Each color has a different wavelength. ____ Red has the longest wavelength and _____ violet has the shortest wavelength. When all the waves are seen together, they white make _____ light.

When light strikes a colored opaque ______ object, some of the colors of light are ____ absorbed and others are reflected.

When white light shines on a red apple, only ___ red light is reflected.

When white light shines on a black object, all the colors are ____. absorbed

When white light shines on a white object, all the colors of light are ____. reflected

When light strikes a colored transparent _____ object, you see the color that was transmitted. All other colors were ____. absorbed

three colors of light that can be combined in different ratios to produce all colors of light red green blue primary colors of light

Mixing (adding) primary colors of light yields _____ secondary colors. yellow cyan magenta

red light + green light = yellow

magenta = red light + blue light

blue light + green light = cyan

Mixing equal amounts of red, green and blue lights yield _____ white light.

White light can also be produced by mixing the proper proportion of a color and its opposite. Red and _____, cyan green and _______, magenta or blue and yellow _____ lights added together will appear as white light. _____

a material that gives a substance its color by absorbing some colors of light and reflecting others pigment

pigments that can be combined to produce any other color primary pigments magenta cyan yellow

Pigments absorb at least one color of light. When you mix pigments together, more light is absorbed. Therefore, mixing colors of pigments is called color ____ subtraction _____.

Mixing equal amounts of cyan, yellow, and magenta pigments black yield _____.

Don’t confuse colors of light and colors of pigment!

Fun and Games • Online Color Mixing Palette • Virtual Prism, Color Addition & Color Subtraction Scroll down to experiments 33, 35, and 36 • Carmine’s Introduction to Color • Art Edventures

More Fun and Games • Build Your Own Kaleidoscope • Roy G BIV Power. Point • Newton’s Prism Experiments • Made From Dots Read the information and then click “Go!” to play the game. • Alien Attack • Vocabulary Games