Sound
by Jolly Cheong
1. Longitudinal waves.
2. Echo
2.1. When sound is reflected off another object, it is called an echo.
2.1.1. Echo can be used to locate objects.
3. Audible Frequency
3.1. Bats
3.2. Dogs
3.3. Dolphins
4. Created by vibrations
4.1. Sound is transmitted through a medium
4.1.1. Compression and rarefraction