Hearing
Sound Waves
Bill Nye
Sound Uses
Vocabulary
100
It vibrates and sends the energy to the tiny bones in your ear.
What is the eardrum?
100
The reason sound waves are mechanical.
What is they need a medium?
100
This occurs when an object vibrates at its natural frequency.
What is resonance?
100
We have used this to map the ocean floor and find sunken treasure.
What is SONAR?
100
The tube sound waves travel down to reach the eardrum.
What is the ear canal?
200
It's the reason there is no sound in space.
What is there is no matter in space?
200
The science of sound.
What is acoustics?
200
The determines pitch.
What is the frequency?
200
We use this to see inside bodies for medical purposes.
What is ultrasound or ultrasonic waves?
200
The part of the ear that contains the external ear, ear canal, and eardrum.
What is the outer ear?
300
Sounds too low for us to hear, like some made by heavy machinery.
What is infrasonic?
300
The change in frequency/pitch as a sound approaches and passes a listener.
What is the Doppler Effect?
300
This is how the phase of matter affects sound speed.
What is slower in gas, fastest in solids?
300
Some animals can maneuver in the dark using this.
What is echolocation?
300
The part of the ear that contains the tiny bones.
What is the middle ear?
400
Tiny hair cells that move when fluid vibrates, sending impulses to the auditory nerve.
What are cilia?
400
The speed of sound waves are determined by this.
What is the medium they travel through?
400
Loud concerts can damage your ears if these are above 120.
What are the decibels?
400
This is used to get some radar images.
What is the Doppler Effect?
400
The part of the ear that contains the cochlea and semicircular canals.
What is the inner ear?
500
Sounds that echo from many surfaces, not pleasant.
What is reverberation?
500
An intentional arrangement of sound.
What is music?
500
This allows us to see sound.
What is an oscilloscope?
500
This can be used medically to break up kidney stones.
What is ultrasonic waves or ultrasound?
500
The organs in the inner ear that maintains our sense of balance.
What are semicircular canals?
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