Show:
Basics
Ear
Properties
Wave Interactions
Mystery
100
A disturbance that transmits energy
A Wave!
100

Sound waves initially vibrate this part of the ear

Eardrum!

100

Sound waves travel along this membrane

basilar 

100

The sound originates from the 

Sound source

100
How can you protect your hearing?
use earplugs
200
The part of the ear that collects sound waves
Outer Ear
200
The bending of hair cells stimulate nerves and send electrical signals where?
To the brain
200
What does an oscilloscope do?
changes sound waves into electrical signals then graphs it on a screen.
200
The amplitude of a sound's waves affect?
Loudness
200

Who might suffer from hearing loss before age 65?

Rock Star, construction workers, machinist, etc 

300
Sound is created by?
The vibration of particles through a medium.
300

The hair cells have tiny detectors called

Stereocilia
300

What unit is used to express loudness?

Decibel (dB)

300
What does the frequency of a sound wave affect?
Pitch
300

What is needed for sound to travel?

Medium/matter

400
A substance a wave can travel through is?
A Medium!
400

What percent of adults over the age of 65 is attributed to presbycusis or due to aging

30%

400

Peaks are used to measure 

amplitude

400

Sound property that best puts out fires

Low Pitch

400
Why won't sounds travel in a vacuum?
No particles to vibrate
500
Sounds travels fastest through what type of medium?
Solid
500

The structure in the ear related to damage caused hearing loss 

Cochlea

500
Define Pitch
How high or low a sounds seems
500

What is the mathematical formula to solve energy based on a measurement of amplitude

E=A2

500
When will you hear a sonic boom?
When a shock wave reaches your ears