The ear
Sound Quality
Musical instruments
Properties of Sound
interactions of Sound
100
the outer part of the ear that collects sound waves
What is the pinna?
100
a reflected sound wave
What is an echo?
100
stringed, percussion, and wind
What are the three families of instruments?
100
pitch
What is a measure of how high or low a sound is perceived to be?
100
echolocation
What is the process of using reflected sound waves to find objects?
200
part of the ear at the end of the ear canal that starts the vibrations in the ear?
What is the eardrum?
200
a random mix of frequencies
What is noise?
200
percussion
What kind of instruments make sound when they are struck?
200
Chuck Yeager
Who is the first person to break the sound barrier?
200
sonar
What is a type of electric echolocation?
300
two things that can be found in the cochlea?
What are liquid and tiny haircells
300
sound quality
What is the result of the blending of several pitches through interference?
300
kind of sound will you hear when two sound waves interfer constructively?
What is a louder sound?
300
decibles
How is the loudness of a sound measured?
300
sonic boom
What is the explosive sound heard when a shock wave hits your ears?
400
the three bones in the the middle ear.
What are the hammer, anvil, and stirrup?
400
ocilloscope
What is instrument is used to SEE sound?
400
bacause the tuba has a longer and larger air column than a trumpet
Why does a tuba have a lower pitch than a trumpet?
400
speed = wavelength x frequency
What is the wave equation for speed?
400
construcive and destructive
What are the two kinds of interference?
500
the signals that are sent by the auditory nerves
What are electrical signals?
500
resonant frequency
What is the frequency at which standing waves are made?
500
a hollow guitar that amplifies sound
What is an acoustical guitar?
500
Doppler Effect
What is the apparent change in frequency of a sound caused by motion of observer or source of the sound?
500
ultrasonic
What is a sound louder than humans can hear?
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