SOUND AND LIGHT Chapter 3 The Nature of Light

Section 4 Light and Color

the passing of light through matter

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

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

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

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

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

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

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 _________ object, you see the color that was transmitted. All other colors were ________. transparent absorbed

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

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

red light + green light = yellow

magenta = red light + blue light

cyan blue light + green light =

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

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

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 magenta primary pigments yellow cyan

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 yield _____. black

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 36Virtual Prism, Color Addition & Color Subtraction Carmine’s Introduction to ColorCarmine’s Introduction to Color Art Edventures

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