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  • Did you know that sound waves are mechanical waves that move back and forth.
  • No I didn't. Tell me more.
  • Well did you know sound waves are characterized as longitudinal waves.
  • Also when you move something it makes a sound no matter what because the particles vibrate.
  • Did you know sound waves have compressions and rarefactions. Sound travels in  mediums such as air.And the particles vibrate side to side in the direction of the wave.
  • When you hit a surface sound waves are created because the particles begin to touch and they start vibrating.
  • https://www.youtube.com/watch?v=AGjxfx8sy6s&t=234s
  • https://en.wikipedia.org/wiki/Sound
  • www.physicsclassroom.com
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