Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.


Sound Waves

No description

Laura Krcelic

on 1 April 2015

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Sound Waves

Sound Waves
Sound is Produced by Vibrations
Vibration is the complete back-and-forth motion of an object
Creating Sound VS. Detecting Sound
"If a tree falls in the forest and no one is around to hear it, does the tree make a sound?"
Detecting Sound
Hearing Loss and Deafness

How the Ear Works
Properties of Sound
Sound changes when mediums change

All sounds require a medium
results from long-term exposure to loud sounds
Loud sounds can cause damage to hair cells and nerve endings
Speed of Sound in Different Media
Medium Speed (m/s)
Air 343
Helium 1,005
Water 1,482
Sea Water 1,522
Wood (oak) 3,850
Glass 4,540
Steel 5,200
Pitch DEPENDS on frequency
high frequency = high pitch
low frequency = low pitch
Frequencies You Can Hear -> 20 Hz to 20,000 Hz
Frequencies we CAN'T hear ->
Lower than 20 Hz = infrasonic
Higher than 20,000 Hz = ultrasonic
Loudness is Related to Amplitude
Large Amplitude = Loud Sound
Unit of loudness is the
decibel (dB)
Full transcript