IN ALL - 343 3B.4 Evidence (Honors) | Mechanical Waves & Sound - Study Guide 9. a) Draw a position versus time graph of a transverse wave with an amplitude of 4.0m and wavelength of 8 m. b) Label the x and y axes with correct units c) Identify the direction of the wave motion and the motion of the particles with arrows. d) Label amplitude, crest, trough, and wavelength. 10. a) Draw a picture of a longitudinal wave. b) Identify the direction of the wave motion and the motion of the particles. c) Label compression, rarefaction, and wavelength. interference