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Change in the frequency of a sound wave that occurs when the sound source and the listener are in motion relative to each other. Example: a fire truck passing with its siren on.
Membrane stretching across the ear canal that vibrates when sound waves reach the middle ear.
A reflected sound wave.
Lowest natural frequency that is produced by a vibrating object, such as a string or a column of air.
The human perceptions of hopw much energy a sound wave carries.
A group of sounds that have been deliberately produced to make a regular pattern.
Frequencies at which an object will vibrate when struck or disturbed.
Multiples of the fundamental frequency.
How high or low a sound is.
Occurs when an object is made to vibrate at its natural frequencies by absorbing energy from a sound wave or other object vibrating at this frequency.
Repeated echos of sound.
Chapter 17 Vocabulary