Sound Waves

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  • Created by: Abbie
  • Created on: 26-05-12 15:21

Sound Waves

  • Sound waves are caused by vibrating objects, these mechanical vibrations are passed through the surrounding medium as a series of compressions - longitudinal waves
  • Sometimes the sound will eventually reach someone's eardrum
  • Because sound waves are caused by vibrating particles, the denser the medium, the faster sound travels
  • Sound generally travels faster in solids than liquids and faster in liquids than gases

(http://www.school-for-champions.com/science/images/sound-compression.gif)

Sound waves can reflect and refract...

  • Sound waves will be reflected by hard flat surfaces, things like carpets and curtains absorb sound waves
  • Sound waves also refract as they enter different media, as they enter dense materials they speed up

The frequency of a wave is the number…

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