Having gone through the theory behind oscillations and simple harmonic
motion,
we
are now able to apply
our knowledge to practical situations. This SparkNote draws upon the equations
and concepts already established, developing a more complete understanding and
the ability to apply our knowledge of oscillations and harmonic motion. We take
an empirical approach to oscillations in this section, starting with a given
physical system and finding the equations that govern its oscillation.
We begin by examining
various physical situations in which simple harmonic motion arises, including
the torsional oscillator and the pendulum. We then examine the quite
surprising relationship between simple harmonic motion and uniform circular
motion. Finally we begin to tackle the topic of complex harmonic
motion, looking at both
forced and damped harmonic motion. Unfortunately, a full treatment of complex
harmonic motion requires far too complex mathematics, so we will treat these
topics in a primarily qualitative manner, simple stating the equations when
necessary. Complex harmonic motion is most common in practical use, however, and
the study of it will be easily applicable to a variety of situations.
With this SparkNote we conclude our study of classical mechanics. Having studied
the concepts behind linear, rotational, and now oscillatory
motion, one can
describe almost any mechanical situation.