What's in an ear?
People who did stuff
The ear is cool
Sound and stuff
Other stuff to know
100
What is A
Auricle
100
Who was the inventor of the telephone?
Alexander Graham Bell
100
How do bats "see"?
with their ears, sound waves
100
What does sound travel faster through?
solids or liquid
solids
100
What part of the body produces vibrations to create speech?
vocal cords
200
What is D?
eardrum
200
What determines the depth of the water and locates objects, used by the Navy?
Sonar
200
What parts make up the middle ear?
the hammer, anvil, and stirrup
200
What is reflected sound that is heard again called?
echo
200
What is the snail shaped part of the ear called? That contains the actual organ of hearing?
cochlea
300
What is G?
cochlea
300
Who was the man that proved sound waves travel only through matter?
Robert Boyle
300
The _____________ carries the message of sound to the brain.
auditory nerve
300
Does sound travel through light faster or slower?
slower
300
Sound is a form of ______
energy
400
What is E?
Anvil
400
Who invented the phonograph?
Thomas Edison
400
Which type of animals have visible outer ears?
Mammals
400
When an object vibrates very rapidly, do the sounds produce a high or low pitch?
high
400
What hear the highest frequency sounds?
(there are 2)
Bats and Dolphins
500
What is F?
stirrup
500
Who discovered that bats "see" with their ears?
Lazzaro Spallanzani
500
Two ears are better than one because ________ ?
They help you tell which direction a sound is coming from
500
What is the lowest frequency that the human ear can hear?
______ per second
20 times per second
500
Do materials with soft, uneven surfaces reflect or absorb sound waves?
absorb