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COLOR and Light February 6, 2014. How does light interact with matter? O Light can interact 3 ways: O 1. reflected – light waves bounce of objects O 2.

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Presentation on theme: "COLOR and Light February 6, 2014. How does light interact with matter? O Light can interact 3 ways: O 1. reflected – light waves bounce of objects O 2."— Presentation transcript:

1 COLOR and Light February 6, 2014

2 How does light interact with matter? O Light can interact 3 ways: O 1. reflected – light waves bounce of objects O 2. absorbed – light is taken in object (heated) O 3. transmitted – light passes through matter

3 Looking through a window all 3 interactions can be observed O How? O Seeing through glass (transmitted) O Seeing your reflection in glass (reflected) O Feeling the heat of the glass (absorbed)

4 Transparent, translucent, and opaque, what’s the difference? Transparent – allows light to pass through without interference Ex. Clear glass Translucent – transmits light but does not transmit an image ex. Frosted glass Opaque – no light transmitted, can not see through ex. Aluminum foil

5 How do we see colors? O Our eyes detect wavelengths of light reflected off objects O White light is made up all colors of light O The color of your shirt is the color that is being reflected not absorbed

6 What are the primary colors of light? O Colors of light that when mixed together equally make white light O Red, Blue and Green light O Mixing of primary colors can produce all other colors of light

7 What are the primary pigments of color? O Colors of pigments that can make all other colors O Cyan, Yellow, and Magenta O Used in printing along with black to make the colors of photographs

8 What is diffraction? O Bending of waves around barriers or through openings O The greatest amount of diffraction occurs when the barrier or opening is the same size or smaller than the wavelength


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