PHYS 2001 Lecture : Chap 12 Notes
Document Summary
Transverse: the displacement is perpendicular to direction of travel. Longitudinal: the displacement is parallel to the direction of travel. A mechanical wave is a travelling or periodic disturbance in some medium that carries energy from one point in space to another. A wave pulse is a self-contained displacement that travels along. An oscillatory wave is a continuous chain of pulses that travel together. Less likely to disperse once they are set up. Let"s make a plot of the wave displacement with respect to both position and time. (cid:4)(cid:5)(cid:7)(cid:6) (cid:1) (cid:10) Period (cid:11) (cid:7) (cid:4)(cid:5)(cid:3)(cid:6) (cid:1) (cid:11) (cid:3) (cid:2)(cid:1) Speed of wave (cid:12) (cid:13) (cid:14) (cid:11) (cid:13) (cid:10)(cid:15) (cid:2)(cid:1) : a longitudinal wave with a frequency of 3. 0 hz takes 1. 7 s to travel the distance of a 2. 5-m slinky. What is the wavelength of the wave? v f d f t.
