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ch.17 ph. science

chapter 17- the electromagnetic spectrum

QuestionAnswer
the energy carried by an electromagnetic wave is called electromagnetic radiation
all electromagnetic waves travel at the speed of light
electromagnetic waves with the lowest frequencies are radio waves
which color of visible light has the longest wavelangths red
ultraviolet waves help the body make vitamen d
which type of light bulb uses a filament to produce light imcandescent
vapor lights contain sodium or mercury
all electromagnetic waves travel at the same speed
the higher the frequincy of an electromagnetic wave, the more energy it has
heat lamps give off infrared rays
colored lights that are used in signs are neon lights
communications satellites are used for ratio, television, and telephone signals
sometimes light behaves like a stream of particles true
radar uses reflected gamma rays to detect objects falce
most objects give off some infrared rays true
florescent lights give off less light than incandescent lights falce
what part of a fluorescent light bulb produces light the powder
Created by: manu1
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