Sound Vocabulary
Parts of the Ear
Waves
More Waves
Even More Waves
100
vibration
What is a repeated back and forth motion
100
Ear Drum
What is a small, tightly-stretched drum-like membrane in the outer ear?
100
longitudinal waves Needs a medium
What kind of waves are sound waves and do they need a medium to travel through?
100
trough
What is the low point on a transverse wave
100
Medium
What is the material through which a wave travels
200
Pitch
What is the perceived frequency of sound, measured in Hertz
200
Hammer
What is one of the three small bones in the middle ear that transmits vibrations from the ear drum to the anvil?
200
transverse waves do not require a medium to travel through
What kind of waves are light waves and do they require a medium to travel through?
200
crest
What is the high point on a transverse wave
200
longitudinal wave
What are waves where matter in the medium moves forward and backward in the same direction
300
Loudness
What is the perception of the energy of the sound, measured in decibels
300
Stirrup
What is one of three small bones in the middle ear that transmits vibrations from the anvil to the cochlea?
300
wavelength
What is the distance between two corresponding points of adjacent waves, such as crest to crest
300
rarefaction
What is a decrease in density and pressure in a medium (waves pull apart)
300
light
What is electromagnetic radiation that travels in waves and can be perceived by the human eye
400
Inaudible
What is "not able to be heard"
400
Auditory nerves
What carries messages from the cochlea to the brain?
400
Frequency
What is pitch (high or low)-length of wave
400
compression
What is a force that tends to shorten or squeeze something, decreasing its volume
400
Lower temperatures
Does sound travel slower in higher or lower temperatures?
500
Echo
What is a reflected sound wave
500
Cochlea
What is the fluid-filled cavity shaped like a snail shell that contains tiny structures called hair cells and is part of the inner ear?
500
Amplitude
What is volume of a wave (height of wave)
500
Transverse waves
What are waves where matter moves back and forth at right angles to the directions the wave travels
500
Solids
Does sound travel faster through solids, liquids or gases?
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