The bob of a simple one of these moves with simple periodic motion
The ... A point moves with simple harmonic motion whose period is 4 s. [DOC] [TLE] Simple Harmonic Motion  Concepts - WebAssign [PAR] The motion of the pendulum is a particular kind of repetitive or periodic ... A 
particle that vibrates vertically in simple harmonic motion moves up and down ... 
One complete oscillation or cycle or vibration is the motion from, for example, ....