Protecting Your Hearing. Raising Awareness About Excessive Noise. What is sound?. Vibrations or waves that move through the air or water. Caused by molecules bumping into each other. The faster a wave vibrates, the higher the sound; slower waves produce low sound
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Raising Awareness About Excessive Noise
into each other.
The ear is divided
into 3 parts:
-The outer ear or pinna,
funnels sound waves into the ear canal, which will lead to the eardrum. This is a membrane that stretches across the entrance to the middle ear.
Caused by damage to the tiny hair cells in the cochlea. It is permanent.
Band practice, football games, video arcades
Pep rallies, rock concerts
Crank It Down!
National Hearing Conservation Association
Oregon Hearing Research Center