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ch. 27 notes

QuestionAnswer
what are sources of light ? sun, lamp filament , candle , glowing gases
what materials are transparent? glass, air, water
what materials are opaque? wood, metal
what materials are transluscent? thin paper, frosted glass
what do scienctists now agree on light? that light has a dual nature, part wave and part particle
what was enestiens theory ? light consists as particles , photons that move as waves
what is the speed of light ? 300,000 km/s
michelson recieved a noble prize in physics for what? for using a spinning mirror apparatus and found the same value for light
how long does it take the light from the sun to reach the earth? 8 minutes
Created by: hkramer
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