Sound Pressure in Longitudinal Waves

Sound waves are longitudinal waves that create changing pressure in a medium. Their displacement amplitude can be modeled as a function of position and time. As one column of the medium moves, nearby columns also move. The difference between these successive displacements produces a pressure change compared with the surround...

Considérez le son voyageant à travers un médium. Les perturbations longitudinales créent une différence de pression entre ses colonnes successives, qui subissent alors des oscillations.

Considérons un cylindre non perturbé du milieu, avec une section transversale A le long de l’axe des x. Son déplacement longitudinal, do...