Example: Interview on how a dust particle responds to a sound wave:
If you have a box, and apply a force ... you can find the acceleration.”
Describe the motion of the dust particle
“It would move away from the speaker, pushed by the sound wave … I mean, sound waves spread through the air, ... the air is actually moving, so the dust particle should be moving with that air which is spreading away from the speaker.”
The sound wave “hits the particle with … force.
*Michael Wittmann, Ph.D. Dissertation, U. of MD, December 1998.