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Transcript of Physics: Waves
particles move parallel to direction of wave
Ex: domino effect, sound
particles move perpendicular to direction of wave
Ex: light, coil
a combo of both, circular/elliptical paths
Ex: sea waves
How do waves interact with eachother?
when two waves meet while moving along the same medium
waves are "in phase"
waves are "out of phase"
Refraction and Diffraction
P and S waves
primary, compressional, acoustic
fastest seismic waves
can't travel through
distance from midpoint to crest/trough of a wave
bigger amplitude = more energy
distance for one cycle
time needed for 1 cycle of a wave
# of cycles in 1 second
F = 1/time
how fast a wave is moving
V= wavelength x frequency
more stiffness=smaller period=higher frequency
Features of Waves
If the particles of the medium are vibrating to and from at right angles in the same direction, then the wave is a _____ wave.
A transverse wave is traveling through a medium. The particles of the medium are vibrating _____
a. parallel to line AD
b. along the line CI
c. perpendicular to line AD
d. at various angles to line CI
What is the wavespeed if wavelength is 20 and frequency is 300 Hz?
What is the frequency if the period is equal to 20 seconds?
bending of a wave from one medium to another
waves bounce off a barrier and split
bouncing back from the original wave
harmonic mode of vibration
adding two or more amplitude of waves at a certain time
What is the wavespeed if the wavelength is 6 and period (time) is 35 Hz?