Study for quiz 2 sound:
Choose the sound with the highest pitch. Assume all sound is traveling at 500 m/s.
1000 Hz
Which of the following is a supersonic speed?
Mach 5
If a person's eardrum perceives a sound with a high pitch what can be predicted about the wavelength of the sound wave?
The wavelength must be short.
dissonance
a discordant sound created
consonance
a harmonious sound created
beats
a series of alternating reinforcements and cancellations
A sonic boom is caused by _____.
a sound-producing object overtaking its own sound waves
resonance frequency
an object's natural frequency of vibration
When two notes are played simultaneously, creating a harmonic sound, it is called _____.
consonance
What type of interference results in beats?
constructive
supersonic
faster than the speed of sound
The lowest possible frequency that can form in a musical instrument is called the _____.
fundamental frequency
One of the main contributors to the timbre of a sound is _____.
harmonics
A sound-producing object is moving toward an observer. The sound the observer hears will have a frequency ______________________ that actually being produced by the object.
higher than
In general, the _______________ the string or air column of a musical instrument is, the more harmonics are generated.
longer
harmonics
multiples of the fundamental frequency
An opera singer sings a note that breaks a glass. This is an example of _____.
resonance
subsonic
slower than the speed of sound
The speed of an object traveling below the speed of sound is called _____.
subsonic
Doppler effect
the apparent change in frequency perceived when the source
timbre
the characteristics by which the ear
sonic boom
the sound created when a fast moving object
Mach number
the speed of an object divided by the speed of sound
resonance
the tendency of an object to vibrate
Which of the following is not an application of Doppler technology?
ultrasound imaging of the liver