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