A wave in which the individual particles of a medium vibrate back and forth in the direction in which the wave travels. Image of longitudinal wave in a spring. Comparision between longitudinal and transverse waves.

A seismic body wave in which particles oscillate along lines in the direction in which the wave travels. Synonymous with P wave.

a wave in which points on the wave move parallel to the direction of wave propagation.

Rate of propagation of a wave parallel to the direction of motion of the particles.

a wave in which particles of the medium move in a direction parallel to the direction which the wave moves

a wave that has vibrations along the wave's direction of travel

a wave that vibrates in a direction parallel to the path of the wave

A wave which is parallel to the medium (sound)

Sound waves, direction of movement is same as the direction of the wave.

In a longitudinal wave, the material moves in the same direction as the motion of the wave. Sound is an example of a longitudinal wave. What are Waves

A wave in which the direction of vibration of the particles is in line with the direction in which the wave is travelling.

In a longitudinal wave the particle displacement is parallel to the direction of wave propagation. There are two basic types of wave motion for mechanical waves: longitudinal waves and transverse waves. http://www.kettering.edu/~drussell/Demos/waves/wavemotion.html

see compression wave

a wave that vibrates in the same direction as its length

A wave in which the vibrations are in the direction of propagation of the wave.

Longitudinal waves are waves that have vibrations along or parallel to their direction of travel. They include waves in which the motion of the medium is in the same direction as the motion of the wave. Mechanical longitudinal waves have been also referred to as compressional waves or pressure waves.