Chapter 7 Waves/rays

9 terms by Chezzner 

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first part of chapter 7

electromagnetic spectrum

spectrum of radiation over a broadband of wavelength

gamma ray

short wave lengths, high frequencies, stopped only by pb and concrete

xray

similer to gamma but made with special equipment. pass through soft tissue to be stopped by bone

ultraviolet

sunlight that causes sunburn, mostly absorbed by ozon layer

visible light

eyes and brains interpret frequencies as light and color

infrared

given off by hot objects

microwaves

low frequency and energy waves for cooking and communicating, longest lowest wave

wavelength

lambda, distance between peaks of a wave

frequency

nu, number of waves/sec that pass a point, units Hz

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