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PS: Ch 11 T
Question | Answer |
---|---|
sound that occurs when a lip interferes with air flow and creates regular pulses of compression | edge tone |
time needed for 1 wave to pass | wave period |
Different kinds of wave interference | constructive or destructive |
length of a wave | wavelength |
the distance between 2 notes in music | interval |
system where sound is used to detect underwater objects | sonar |
sounds made by musical instruments that contain higher frequencies than the fundamental | overtones |
vibrations traveling through a medium of longitudinal pressure waves | sound |
change in the direction of a wave because of a collision with an object | reflection |
sound in which the frequency is below human hearing | infrasonic |
random sound with no intended pattern | noise |
instrument family that contains the trumpet and tuba | brass |
instrument family that contains various opening and closing holes in a tube | woodwinds |
the distinctive sound quality of a musical instrument | timbre |
instrument family that have to be struck to create sound | percussion |
most versatile and widely played instrument in modern times | piano |
when driving and natural frequency is the same | resonance |
set of frequencies where an object vibrates | natural frequency |
when an object is moving faster than the speed of sound, it creates a violent compression pulse known as __?__ | Shock Wave |
A hollow body that reverberates sound waves to make the sound louder | resonator |
2 major types of waves | transverse and longitudinal |
major type of wave that has a crest followed by a trough and particles oscillate at right angles from the direction of the wave | transverse wave |
major type of wave that has a compression pulse followed by a refraction pulse and particles oscillate in the direction of the wave | longitudinal wave |