Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: waytogo on 23/09/2012 11:46:23

Title: Is the sound able to move mass?
Post by: waytogo on 23/09/2012 11:46:23

That's simply another question...

Title: Re: Is the sound able to move mass?
Post by: evan_au on 23/09/2012 13:28:11

Sound propagates as a movement in a medium. So sound does move mass, but a pulse of sound at some frequency results in the mass ending up in basically the same position in which it started, after the sound pulse has passed.

To end up with a net movement of mass, you need a "DC" sound, such as an earthquake slip, or an explosion, both of which result in a net displacement of mass close to the epicenter.

Title: Re: Is the sound able to move mass?
Post by: yamo on 23/09/2012 16:08:10

does making your eardrum vibrate count as moving mass?