When a sound wave passes through the air , the particles of air vibrate back and forth parallel to the direction of sound wave. Waves traveling through the mass of a fluid such as a liquid or gas are always longitudinal waves. The difference of this two ways are the ways they both move. Waves usually transfer energy , but not all waves transfer energy the same way. Waves can be classified by the direction that they cause particles in a medium to move with the direction in which the wave moves. Energy can be transferred from one object to another using up and down motions. This causes the energy to travel as a transverse wave. The movement in a transverse wave is at 90 degrees to the motion while in the longitudinal, the displacement is parallel. There are regions of compression and rarefaction in a longitudinal wave. Many of this waves are formed as the wave passes through, the particles in the air oscillate back and forth about their equilibrium positions but it is the disturbance which travels, not the individual particles in a medium. Most of the surface waves have characteristics of both transverse and longitudinal
When a sound wave passes through the air , the particles of air vibrate back and forth parallel to the direction of sound wave. Waves traveling through the mass of a fluid such as a liquid or gas are always longitudinal waves. The difference of this two ways are the ways they both move. Waves usually transfer energy , but not all waves transfer energy the same way. Waves can be classified by the direction that they cause particles in a medium to move with the direction in which the wave moves. Energy can be transferred from one object to another using up and down motions. This causes the energy to travel as a transverse wave. The movement in a transverse wave is at 90 degrees to the motion while in the longitudinal, the displacement is parallel. There are regions of compression and rarefaction in a longitudinal wave. Many of this waves are formed as the wave passes through, the particles in the air oscillate back and forth about their equilibrium positions but it is the disturbance which travels, not the individual particles in a medium. Most of the surface waves have characteristics of both transverse and longitudinal