Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

B Why do air compressors make sounds?

  1. May 6, 2016 #1
    Why do compressors for example in the fridge make that vibrating sound, I've heard a similar vibrating noise in fans which are compressing air as well... i think. Why does compressing air make sound? Can air hitting air create sound waves?
     
  2. jcsd
  3. May 6, 2016 #2
    Well you really can't move air without moving parts. (Except maybe a nebula in space being pushed by solar wind?) It is usually a motor and some kind of piston that you are hearing. Sound waves ARE air hitting air, so I'd think that yes, even if no solid objects are involved, moving air would make sound.
     
  4. May 8, 2016 #3

    jack action

    User Avatar
    Science Advisor
    Gold Member

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Why do air compressors make sounds?
  1. Why do we make such (Replies: 6)

  2. Air compressor (Replies: 2)

  3. Air Compressors (Replies: 8)

Loading...