Java Physics


 L wave

Longitudinal Traveling Wave 2



Internal Links :

Longitudinal Traveling Wave 1 (Applet)

Longitudinal Traveling Wave with graph of pressure variation (Applet)

Transverse Traveling Wave (Applet)

Types of waves (traveling vs stationary; transverse vs longitudinal) (Applet)

Run Applet Online

Run on Java-enabled web browsers by adding the URL in the Exception Site List in your
Java Control Panel settings. But, whenever you do this, you must ensure the site is safe.
(Web Safety Checker: Scamadviser, Norton, Sucuri, Google).

Download Executable Jar File

Run outside of the browser by pressing 'Enter' or double-clicking the Jar file



Longitudinal Traveling Wave:

  1. The arrows in the above diagram are the displacements, not the velocities.
  2. All particles inside a compression are moving in the same direction of the propagation of the wave. At the same time, all particles inside a rarefaction are moving in the opposite direction.
  3. At the central part of a compression or a rarefaction, the displacement is zero and the speed is the greatest.
  4. But in a longitudinal stationary wave, the centers of compressions and rarefactions are NODES. Their displacements are zero and always at rest.




Author and Copyright:

Chiu-king Ng

Feedback/Contact:, where XY is the prime number following 23

Mirror Site:

Last Update:


Java logo