| 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 |
mr. charles11
