PHYSICS 109 Lecture Notes - Lecture 2: Simple Harmonic Motion, Net Force, Kolmogorov Space
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Physics 109 - lecture 2 - simple harmonic motion. Periodic motion which is described by a sine function. Can be written as/ the parameters describing simple harmonic motion. X(t) = a sin ((360o * f)(t-t0)) ; a, f, and t0 are constant. A = amplitude - height from x-axis to crest. F = frequency (period t = 1/f) The period is the change in x between one crest and another crest. T0 = initial time; value of t at which x(t)=0 and x(0) is increasing. Detectors and ears detect particular sine waves. Many physical systems exhibit simple harmonic motion because of newton"s laws of motion. Mass connected to an undamped spring undergoes simple harmonic motion. Position of mass vs. time satisfies the parameters for describing simple harmonic motion (the equation from above) The frequency of oscillation does not depend on the amplitude (a) Relate motion of a body to forces acting upon it -- the most famous law is:
