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Harmonic Motion
Question | Answer |
---|---|
Doppler effect | shift in frequency caused by motion |
Frequency | sound tells you how fast the pressure oscillates |
Pitch | different sounds |
Decibels | loudness of sound |
Speaker | a device that is specially designed to reproduce sounds accurately |
Longitudinal waves | air is compressed in the direction of travel |
Subsonic | moving slower than sound |
Resonance | spaces enclosed by boundaries,with sound waves |
Reverberation | multiple echo |
Fourier's theorem | any wave form can be represented as a sum of single frequency waves |
Frequency spectrum | a graph that shows the amplitude of each component frequency in a complex wave |
Sonogram | a special kind of graph that shows how loud sound is different frequencies |
Cochlea | a tiny-filled organ in the inner ear |
Rhythm | a regular time pattern in a sound |
Musical scale | pattern of frequencies |
Consonance | more than one frequency of sound and the combination sounds good |
Dissonance | combination sounds bad or unsettling |
Beat | the phase of the two waves changes in a way that makes the loudness of the sound seem to oscillate |
Variation comes from | harmonics |