1. is the distance between one point of a wave to the same point in the next wave. 2. is the number of waves per unit of time. indicate the distance that represents the amplitude. crest trough the number of complete waves that pass a given point in a certain amount of time the maximum distance the particles of the medium carrying the wave move away from their rest positions 3 longitudinal transverse waves move at a angle longitudinal because it Waves move the particles of the medium parallel to the direction in which the waves are traveling 3. waves occur when the motion of the medium is parallel to the direction of the wave. 4. The is the top of a wave. 5. The is the bottom of a wave. 6. is the maximum distance that matter is displaced from the resting position. 7. waves occur when the motion of the medium is at right angles (perpendicular) to the direction of the wave.