Ear
Sound
Frequency
Waves
General
100
The skin-like membrane that vibrates in the ear .
What is the ear drum?
100
Name given to how high or low a sound is .
What is pitch?
100
The number of waves in an interval of time .
What is frequency?
100
These cause sound waves.
What are vibrations?
100
Another name for your voice box .
What is the larynx?
200
The fluid-filled chamber in the ear shaped like a shell .
What is the cochlea ?
200
The unit used to measure the loudness of sounds .
What is a decibel?
200
A shock wave made by an object traveling faster than the speed of sound .
What is sonic boom?
200
A reflected sound wave.
What is an echo?
200
Vibrations in these produce sound .
What is vocal cords?
300
Animals which use echoes ?to fly safely .
What are bats?
300
The superheated air rapidly expands, cools and then contracts, causing shock waves.
What is thunder?
300
The top of a sound wave.
What is the crest?
300
The matter through which sound waves travel best .
What is solids?
400
The three parts of the ear.
What are the inner, middle and outer?
400
Sound travels through air at 1,120 feet (340 meters) per second.
What is the speed of sound?
400
When the vibrations are fast, you hear. . .
What is a high sound?
400
The distance between crests .
What is wave length?
400
The echo machine used by ships .
What is sonar?
500
Also known as the tympanic membrane.
What is the eardrum?
500
They can hear each other underwater from over 100 miles apart.
What are whales?
500
When the vibrations are slow, you hear. . .
What is a low sound?
500
The height of a sound wave .
What is amplitude?
500
Part of a sound wave where air is pushed together .
What is compression?
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