PhET Simulation - Color Vision

PhET Simulation - Color Vision - P HYSICS PhET Simulation...

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PHYSICS Name: Prashanth Rasanayagam PhET Simulation – Color Vision Date: Tuesday, March 31, 2009 Access : Google “PhET simulations.” Click on Light & Radiation. Launch the Color Vision Simulation. Part I – Use the RGB Bulbs Tab 1) Each light has a color gradient. For the best results, slide the bar to the very top of each color. Each color should be observed individually for this first part. To stop the color, return the bar to the black location. a) What color is seen when the red light is on? The color red is seen when the red light is on. b) What color is seen when the green light is on? The colour green is seen when the green light is on. c) What color is seen when the blue light is on? The color blue is seen when the blue light is on. 2) For the next part we will investigate the effects of mixing two colors. Before you begin each part be sure to make a hypothesis. a) What color do you think the man will see when red and green are mixed together? I predict that the man will see more of a bluish-orange color when the red and green lights are on. b) Turn on the red and green, both to the very top of the color scale. What does the man actually see ? The man actually sees an amber color. c) Experiment with the degree of color. While doing this, make sure that both colors are in equal locations on the scale. What colors are observed? Do they still fit into the same color family as the color observed in ‘b’? Continued on the next page.
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When the degrees of colors are changed for red and green some of the colors observed are a grenade green, a pale orange, and a slight brown. Most of the colors observed do not fit into the same color family as the color observed in ‘b’. 3) Keep the red light on (to the top red location), and turn off the green. We will be looking at red and blue next. a) What color do you think the man will see when red and blue are mixed together? I predict that the man will see the color purple when red and blue are mixed
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This note was uploaded on 04/11/2010 for the course ENG 1p03 taught by Professor Dr.fleisig during the Spring '10 term at McMaster University.

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PhET Simulation - Color Vision - P HYSICS PhET Simulation...

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