Karteikarten
Color Unit Evaluation
Karten in diesem Stapel (10)
- 1Why do objects look a certain color?Objects look a certain color because of their natural frequency. Different materials have different natural frequencies. Most materials absorb light of some frequencies, and reflect the rest. The light a material reflects is the color it looks.
- 2Why does colored glass transmit a certain color of light?Colors that have a different frequency than the color of the glass will have their energy absorbed by the glass. They warm the glass instead of being transmitted as light. If the frequency of the color and the glass is the same, the glass will transmit the color.
- 3What are the three primary colors for light addition?Red
Green
Blue - 4What colors appear when lights of any two primary colors are shone a white object?Red + Green = Yellow
Green + Blue = Cyan
Red + Blue = Magenta - 5How would you guess a TV set makes purple?Red and blue light
- 6What is color subtraction?In color subtraction, the color that a surface displays depends on which parts of the visible spectrum are not absorbed and therefore remain visible.
- 7When is color subtraction used?Reflected light
Mixed pigments
Filters - 8What color do you get when you mix blue paint with yellow paint?Green, because, between blue and yellow pigments, all colors are absorbed except green.
- 9Why is the sky blue?Air molecules absorb and then reemit blue light, scattering it in all directions.
- 10What is the true color of water?Cyan, because water molecules resonate somewhat to the visible-red frequencies. This causes gradual absorption of red light but water. It appears cyan because red is taken away from white light.
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- 11th grade Physics (Color and Light) Karteikarten am Color Unit Evaluation, erstellt von Olivia Gibbs am 06/03/2015.
- Erstellt von
- Olivia Gibbs
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