Tuesday, October 20, 2009

Sound Waves

Sound Waves:
  • sound needs a medium to travel through
  • the sound wave is a compressional wave
  • the particles of the wave are compressed, then released, thing of a Slinky

Bats use ultrasound (above human hearing) to locate food sources- bugs. This process is known as echolocation.

Sonar- the process of reflecting sound waves underwater to locate objects.

No comments: