Vibrations
Pitch
Volume
Random
The Ear
100
Write down one example of a vibration.
Anything that makes a sound.
100
The faster the vibration, the ___________ the sound.
higher
100
The taller the wave, the ____________ the sound is.
louder
100
Draw a sound wave with a low pitch.
Very low frequency.
100
What does sound cause to move in the ear after the ear drum?
Hammer.
200
True or False: ONLY vibrations can make sound.
True.
200
Hitting a tuning fork harder will make the pitch ________ (higher, lower, stay the same).
stay the same.
200
Volume is measured in what units?
Decibels
200
What would sound travel through quickly?
Any type of thick solid like steel or metal.
200
Which part of the ear sends signals to the brain?
Choclea / Auditory Nerve
300
Name something that would vibrate very fast.
Anything small, tight, short, or thin.
300
A lower pitch means that the sound waves are ______________ than normal. (bigger, shorter, smaller, longer)
longer
300
180 decibels and 20,000 hertz would be a _________, _________ sound.
loud, high
300
What kind of place will make an echo?
A place like a cave, mountains, room with smooth walls and no carpet.
300
The pinna _________ sound waves.
Collects, catches, or funnels.
400
In what direction do sound waves travel?
All directions.
400
In water, sound travels ___________ than air. (faster, higher, lower, slower). Bonus points for explaining why.
Faster.
400
Soft sounds have ________ pitch than/as loud sounds. (a lower, a higher, the same)
The same.
400
What animal can hear sounds LOWER than a human?
Elephants.
400
What are the bones in the ear?
Hammer, Anvil, and Stirrup.
500
Name 2 parts in your ear that vibrate?
Ear drum, hammer, anvil, stirrup, choclea.
500
Draw a 5 hz sound wave.
5 waves in one second.
500
What are two ways your hearing gets worse? (bonus point if you get all three)
Aging. Loud sounds. Putting things in your ears.
500
An example of noise is:
Anything that is not music or a pure tone.
500
Humans can hear from ______ hz up to a maximum of ___________ hz.
20 to 20,000 hz.
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