Sound is a disturbance that travels through a mediumLongitudinal waves
Sound waves begin with a vibration Vibrations disturb nearby air particles This moving of particles causes
compressions and rarefactionsPage 37
Write down three examples
Travels through the medium without moving the medium
The disturbances travel through the particles
When disturbances reach your ears, you hear sound
The medium can be…Air, solids, and liquids
When sound reflects of an object it is called an echo
The harder and smoother, the more echo
Sound diffracts through openings Can diffract or bend around corners
Sound can meet and interact with each otherDestructive and constructive
Depends on…Elasticity, density, and temperature of
medium
The ability of a material to bounce back after a disturbance
Amount of matter or mass in a given space
Sound travels more slowly in low temps Why? Particles move slower in cold temps