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11 Cards in this Set
- Front
- Back
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what are the four characteristics of an electromagnetic wave?
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amplitude, wavelength, speed, and frequency
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what are the major regions of the electromagnetic spectrum
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short wavelength: gamma rays, x-rays, ultraviolet light
visible spectrum long wavelength: infrared, mircrowaves, TV, radio |
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amplitude
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height of wave from origin to crest
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wavelength
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distance between successive crests of a wave
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frequency
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how fast a wave oscillates up and down
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speed
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waves move @ speed of light
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relationship between wavelength and frequency
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wavelength = speed of light x frequency
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what is meant by energy quantization
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there is a restriction on how much energy and object emits or absorbs
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how is the energy of radiation related to its wavelength
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energy = h(planck's constant) x frequency
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how does the idea of photons of light explain the photoelectric effect
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photoelectric effect = where light ejects electrons from a metal
photons are absorbed by electrons, gives them energy to escape from metals |
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what is a line spectrum
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a spectrum that only contains certain colors, or wavelengths
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