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Move up and down in essential anatomy 311/2/2022 ![]() ![]() This process continues along the chain of particles until the sound wave reaches the ear of the listener. Longitudinal waves can always be quickly identified by the presence of such regions. This back and forth motion of particles in the direction of energy transport creates regions within the medium where the particles are pressed together and other regions where the particles are spread apart. The collision of particle #1 with its neighbor serves to restore particle #1 to its original position and displace particle #2 in a forward direction. Each individual particle pushes on its neighboring particle so as to push it forward. As a sound wave moves from the lips of a speaker to the ear of a listener, particles of air vibrate back and forth in the same direction and the opposite direction of energy transport. Longitudinal waves are always characterized by particle motion being parallel to wave motion.Ī sound wave traveling through air is a classic example of a longitudinal wave. This type of wave is a longitudinal wave. In this case, the particles of the medium move parallel to the direction that the pulse moves. As the energy is transported from left to right, the individual coils of the medium will be displaced leftwards and rightwards. ![]() Energy will begin to be transported through the slinky from left to right. Suppose that a slinky is stretched out in a horizontal direction across the classroom and that a pulse is introduced into the slinky on the left end by vibrating the first coil left and right. Transverse waves are always characterized by particle motion being perpendicular to wave motion.Ī longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves. In this case, the particles of the medium move perpendicular to the direction that the pulse moves. As the energy is transported from left to right, the individual coils of the medium will be displaced upwards and downwards. Suppose that a slinky is stretched out in a horizontal direction across the classroom and that a pulse is introduced into the slinky on the left end by vibrating the first coil up and down. Categorizing waves on this basis leads to three notable categories: transverse waves, longitudinal waves, and surface waves.Ī transverse wave is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves. One way to categorize waves is on the basis of the direction of movement of the individual particles of the medium relative to the direction that the waves travel. Longitudinal versus Transverse Waves versus Surface Waves It is common to categorize waves based on these distinguishing characteristics. ![]() While all waves share some basic characteristic properties and behaviors, some waves can be distinguished from others based on some observable (and some non-observable) characteristics. ![]()
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