SHM  Wave terms  Wave Phenomena 
associated with Comp 10.1 / chap 13
HW problems; answers: 14 and book
SHM  Harmonic motion
 presence of a restoring force 
Simple Harmonic motion: 

vocabulary 
frequency/period/angular frequency 
Mode: transverse longitudinal (translational) rarefaction/compression torsional (rotational) 

period (T) in sec  the time it takes for one complete oscillation, vibration, or cycle  frequency (f) =1/T in Hz (s^1)  the number of oscillations, vibrations, or cycles per second 
angular frequency cycle/oscillation/vibration: 
amplitude (A) typically in m or °/rad  the maximum displacement of the object from its equilibrium position or its axis of symmetry 
3 types of SHM: 1) longitudinal 2) transverse 3) torsional 

Longitudinal: the mass is displaced parallel (or antiparallel) to the axis of symmetry or the amplitude is along the axis of symmetry creating areas of compression and rarefaction; amplitude is measured as a distance 
transverse: the mass is displaced perpendicular to the axis of symmetry; amplitude is measured as a distance or an angle (angle is preferred)  torsional: the mass is rotated around the axis of symmetry; amplitude is measured as an angle  simple pendulum: system where the mass is concentrated a distance L from the pivot point 

last modified 12906