Sound and Parts of the Ear

Sound !

Sounds are made when objects vibrate. The vibrations enter your ear and you hear them as sound. Sound travels in waves! Sound Waves make the eardrum vibrate and then send messages to the brain. Sound Waves can travel through solids ( Such as metal,stone and wood),and Liquid (such as water) and gasses (such as air. We measure sound intensity ( also referred to as sound power or sound pressure) in units called decibels.

The speed of Sound = 343 meters/second!

Parts of the Ear!