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waves
transfer energy, not matter
wave motion
a series of back and forth movements/oscillations which transfer energy
wavelength
distance between two crests/troughs
amplitude
height of a crest or the depth of a trough
frequency
the number of oscillations per second
speed
the rate at which the crest of a wave travels
ripple tanks
used to study water waves; a wave is created when a bar hits the water, and the frequency depends on the number of times the bar hits the water in a second
transverse waves
particles carrying the waves move side to side perpendicular to the direction of the wave
longitudinal wave
particles carrying the waves move back and forth along the direction of the wave
reflection
wave changes direction when hitting a barrier it cannot cross
refraction
wave changes direction when it changes speed when traveling through a different medium
