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PHYS10 - ColorandPerception July16,2009...

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Color and Perception July 16, 2009 Exploration: Light and Color Activity – Color Combinations Color Combination Prediction Observation Red and green Yellow Yellow Red and blue Purple Magenta Green and blue Dark green Cyan Red, green, blue Dark purple White Activity – Colored Shadows Color Blocked Color of Individual Shadows Red Blue and green Green Red and blue Blue Red and green Questions 1) The objects absorb colors that they aren’t. For instance, an object that is green, like a leaf,  will absorb all colors except green. 2) When a red object is illuminated by light that is green and vice versa, the object comes off  to be black. This is because the object absorbs all the light. Challenge: Intensity Adjustments of 3 Lights Color % red % green % blue Orange 90 100 0 Lavender 70 90 0 Tan 100 100 100 Questions 1) A. OYBIV – The colors of light that are reflected by the paper are all colors except red and  green and the colors the paper will appear to an observer are red and green.
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