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22 terms

Waves and Music

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Vibration
wiggle in space
Wave
Any surging or progressing movement or part resembling a wave of the sea
Period
an amount of time
Simple Harmonic Motion
periodic motion in which the restoring force is proportional to the displacement
Crest
reach a high point
Trough
the lowest point of a wave
Amplitude
the maximum displacement of a periodic wave
Wavelength
the distance (measured in the direction of propagation) between two points in the same phase in consecutive cycles of a wave
Frequency
the number of occurrences of a wave within a given time period (usually 1 second)
Hertz
the unit of frequency
Transverse Wave
a wave that moves the medium in a direction perpendicular to the direction in which the wave travels
Longitudinal Wave
a wave in which the vibration of the medium is parallel to the direction the wave travels
Constructive Interference
The interference that occurs when two waves combine to make a wave with a larger amplitude.
Destructive Interference
the interference that occurs when two waves combine to make a wave with a smaller amplitude
Node
the point of minimum displacement in a periodic system
Antinode
the point of maximum displacement in a periodic system
Pitch
how high or low a sound is
Compression
the part of a longitudinal wave where the particles of the medium are close together
Rarefaction
the least dense region of a compressional wave
Forced Vibration
the vibration of an object that is made to vibrate by another vibrating object
Natural Frequency
frequencies at which an object will vibrate when it is struck or disturbed
Resonance
the quality imparted to voiced speech sounds by the action of the resonating chambers of the throat and mouth and nasal cavities