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The Nature of Sound
Terms in this set (31)
Sound travels as ___.
Which part of the ear increases the size of the vibrations of sound waves entering the ear?
A ___ is a substance through which a wave can travel.
A ___ is a longitudinal wave that is caused by vibration and that travels through a material medium.
A measure of how high or low a sound is perceived to be is the ___ of that sound.
For sound waves, the ___ is the apparent change in the frequency of a wave when the source or observer is moving.
____ is a measure of how well a sound can be heard.
The most common unit used to express loudness is the ___.
The use of reflected sound waves to find objects is called ___.
When you pluck a string on a musical instrument, a ___ forms.
When a vibrating object causes a nearby object to vibrate, ___ results.
A reflected sound wave is otherwise known as an ___.
___ is the combination of 2 or more waves that results in a single wave.
___ is the explosive sound heard when a shock wave from an object traveling faster than the speed of sound reaches a person's ears.
___ is when the compressions of one wave overlap the compressions of another wave, the sound will be louder because the amplitude is increased.
___ is when the compressions of 1 wave overlap the rarefactions of another wave, the sound will be softer because the amplitude is decreased.
Why does everything seem so quiet after a snowfall?
snow does not reflect sound waves; it absorbs then
Why does your voice sound better in the shower?
the hard smooth walls of the shower reflect the sound waves, and the interactions of the waves make your voice sound fuller
___ is the result of the blending of several pitches through interferences.
___ is a sound that consists of a random mix of frequencies.
What interaction of sound waves determines sound quality?
How does noise differ from music?
Music contains repeating wave patterns; noise has no pattern
The ___ of a sound wave depends on its amplitude.
Reflected sound waves are called ___.
2 different instruments playing the same note sound different because of ___.
If a fire engine is traveling toward you, the Doppler effect will cause the siren to sound ___. (higher/lower/louder/softer)
Sound travel fastest through ___. (a vacuum/ sea water/air/glass)
If 2 sound waves interfere constructively, you will hear___. (a high-pitched sound/ a softer sound/a louder sound/ no change in sound)
a louder sound
You will hear a sonic boom when ___. (an object breaks the sound barrier/ an object travels at supersonic speeds/ a shock wave reaches your ears/ the speed of sound is 290 m/s)
a shock wave reaches your ears
Resonance can happen when an object vibrates at another object's ___. (resonant frequency/ fundamental frequency/ second overtone frequency/ all of the above)
all of the above
A technological device that can be used to see sound waves is an ___. ( sonar/oscilloscope/ultrasound/amplifier)
THIS SET IS OFTEN IN FOLDERS WITH...
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