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# Waves

### Ch.10

waves are formed by air and water
air and water have different densitys
wind waves are waves by the surface caused by wind blowing across the water
Tsunami Waves are caused by displacement (land slide, earthquake, volcano)
Energy is transported in waves
wave energy travels ahead but water does not
gravitational potential energy is stored inside an object when it is raised above its resting height
Heat is the size of wave
Wave Length is the distance between adjacent crests
Cycle is when one repetition of wave pattern
Period is The time it takes for adjacent crests to pass one pt. in space
Water polecules have an orbital motion
what is C = L/T Speed(meters/seconds) = wavelength(meters)/ period(seconds)
Greater Speed, Greater Fetch and Greater wind duration = LARGER WAVE(height)
Capillary waves are tiny waves and have the wavelengths 1.73cm or less
Speed Depends on wavelength in Deep water waves only
Shallow Water Waves depends on DEPTH only
Longer Wavelengths travel faster
How do you get REALLY BIG WAVES interference- 2 or more waves into single, thus resulting one
Stable waves have a height of 1/7 max. (wavelength)
Most wind waves have periods of .5- 20s
Most wind waves have wavelengths of 0.4- and 500m
Most wind waves speeds are 0.8- and 25 m/s
Longer wavelengths consist of faster travel and longer periods
Destructive Interference is when waves cancel one another out as one moves up and the other moves down
Constructive Interference is when waves add to one another thus both are trying to move up
Rogue waves are rare and are large waves due to Constructive interfernce
Seiches are shallow water consisting lakes, harbors, glass of water
Tsunami are always in shallow water waves, also Tsunamis are seismic sea waves which triggers earthquakes which then has huge volumes of ocean water that shifts the sea floor to slide vertically
Waves transfer energy not mass
Wind and Ocean floor movement are forces that generate waves
Deep water wave speed depends on wavelength (C=1.25/L)
Shallow water wave speed depends on water depth (C=3.1/ d)
Created by: 740667771