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chapter 3 imaging

electromagnetic and particulate radiation

Define electromagnetic radiation (energy) is an electric and magnetic (energy) disturbance traveling though space. Has no mass. dose not need a medium to travel. only varies in wavelength, energy and frequency. all travel at the speed of light 8x10 to the 8th power measured in m/s
what is the electromagnetic spectrum It is a way ordering (grouping) all different electromagnetic radiation levels
Name the 7 members of the electromagnet spectrum (lowest to highest energy) radio waves, microwaves, infrared light, visible light, ultraviolet light, x ray, and gamma rays
What levels have the ability to ionize matter X-rays and gamma rays
what is the relationship between wavelength and frequency? Inverse. that is the longer the wavelength the lower the frequency
what dose amplitude refer to ? amplitude refers to the max height of a wave
what dose frequency refer to ? Frequency refers to the # of wave that pass a given point per second
what dose wavelength refer to? Wavelength is a measure of the distance from peak of one wave to the peak of the next
Created by: lbolster