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physics chapter 28
chapter 28 color
| Question | Answer |
|---|---|
| For sunlight and other white light the spread of colors seen when the light is passrf through a prism or diffraction grating, in general the spead of radiation b frequency appears at a differnt position | Spectrum |
| light such as sunlight that is a combination of all colors under white light and colored objects appear in their individual colors | white light |
| a material that selectively absorbs colored light | pigament |
| Red,blue, and green light. these colors when added together produce white ight | additive primary colors |
| two colors of light beams that when added together appear white | complemantary colors |
| the colors of magenta, yellow, and cyan these colors are most useful in olor mixing by subtravtion | subractice primary colors |
| a process in which sound or light is absorbed and reemitted in all directions | scattering |
| a state with greater energy than an atoms lowest state | excited state |
| an instrument used to seperate the light from hot gas or other light sources into its constituent frequencies | spectroscope |
| a pattern of distinct lines of color corresponding to particular wavelengths that are such in a spectroscope when a hot gas is viewed | line spectrum |
| who showed by pasing a narrow beam of sunlight through a triangular shaped glass prism it showed that sunglight is composted of a mixture of all colors? | Newton |
| true or false: The color of an opaque object is the color of light is reflects | true |
| true of false: The color of a transparent object is the color of the light it absorbs | false: the color a transparent object is the color of the light it REFLECTS |
| true or false: Yellow-green ligt is the brightest part of sunlight | true |
| You can make any colors by overlapping red, green, and yellow light. | False:You can make any colors by overlapping red, green, and BLUE light. |
| true or false/; only certain colors have complemantary colors that will produce white | false: every color has a complemantary color that will prduce white |
| What produces color? a. what objects absorb b. light eemited or reflection | b. light eemited or reflection |
| What does the perception of color depend on? a. eye brain system b. pn the lighting used | a. eye brain system |
| List the orders of color in the color spectrum: red. orange. (1)______ green. blue.(2)_____ | 1. yellow 2. violet |
| True or false: candle light gives off a redish tint | false candle light gives off a yellowish light |
| true or false incandescent lamps give off red light | true |
| fluroscent lamp gives off a blueish tint | true |
| what does the color of transparent object depend on? | color of light it transmits |
| what light are we most sensitive towards? | yellow green light |
| what s the result of miving red, blue, and green? | it produces white |
| what happends when red and blue overlap | magenta |
| red and green produces? | yellow |
| green and blue produce? | cyan |
| the complementary color for magenta is green rtue or false? | true |
| the complementary color for cyan is green> | false the complementary color is red |
| true or false: frequencies scatter at high frequencies of light | true |
Created by:
15_MNoonan
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