In contrast, consider a longitudinal wave, such as a longitudinal wave in a spring as demonstrated in the video. In a longitudinal wave, each coil of the spring behaves in which of the following ways? oscillates in a direction perpendicular to the direction of the wave's propagation oscillates in a direction parallel to the direction of the wave's propagation, but maintains the same average position overall moves along with the wave, in the direction of propagation, being carried by the wave remains stationary