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Amplitude
________- distance from center to crest trough.
Microwaves
________- easily absorbed by water (radar, cell phone)
Gamma
________ rays- generated from nuclear reactions (stars, bombs)
wavelength
Parts of a wave that is measurable: ________, amplitude, wave speed, period, and frequency.
Waves
________- repeated motion /vibrations that travel through a medium.
Medium
________- material the wave travels through.
Light waves
________- don't require a medium, travels fastest in a vacuum.
X rays
________- imaging bones, radiotherapy.
Visible Light
________- only part of spectrum you see.
Wavelength
lamida
Parts of a wave that is measurable
wavelength, amplitude, wave speed, period, and frequency
Mechanical waves
requires a medium (sound, water)
Radio waves
emitted by radio stations and stars
Microwaves
easily absorbed by water (radar, cell phone)
Infrared
"below red," associated with heat (night vision, weather forecasting)
Visible Light
only part of spectrum you see
Ultraviolet waves
"beyond violet" (kills viruses, lowers sunburns)
X-rays
imaging bones, radiotherapy
Gamma rays
generated from nuclear reactions (stars, bombs)
Light waves
don't require a medium, travels fastest in a vacuum
Speed of light
3.00x10^8 m/s
Medium
material the wave travels through
Transverse waves
moves perpendicular to the direction of travel
Crest
top of the wave
Trough
bottom of the wave
Amplitude
distance from center to crest or trough
Compress zone
particles close together
Period (T)
time it takes for one length to pass (units = s)
Frequency (F)
number of waves that pass each second
Hertz (Hz)
1 Hz = 1 wave per second
Equation for Wave Speed
Speed = frequency x wavelength
Waves are in phase
amplitudes add together
Superposition
combining of waves
Kilo
x10 to the 3
Mega
x10 to the 6
frequency
Note
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