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7thSo&LightCh3Sec3&4
7th Grade Sound & Light Chapter 3 Sec 3 & 4
| Question | Answer |
|---|---|
| illuminated | if you see it by relected light |
| luminous | if an object gives off its own light |
| spectroscope | in instrument used to view the different colors of light |
| incandescent light | light bulb that glows when a filament inside gets white hot |
| tungsten-halogen bulb | bulb with a tungsten filiment and halogent gas |
| flourescent light | bulb that contains a gas and is coated on the inside with a powder |
| vapor light | bulb that contains neon or argon gas and a small amount of solid sodium or mercury |
| neon light | a sealed glass tube that contains neon gas |
| amplitude modulation | method of transmitting signals by changing the amplitude of a wave |
| frequency modulation | method of transmitting signals by changing the frequency of a wave |