PSYCH 3A03 Study Guide - Final Guide: Root Mean Square, Particle Displacement, Sound Pressure

• School: McMaster University
• Department: Psychology
• Course: PSYCH 3A03
• Professor: Paul Faure

Document Summary

The displacement and vibratory oscillations of a mass attached to a spring, a bob attached to a pendulum and the vibrations of the tines of a tuning fork are all examples of simple harmonic motion. Simple harmonic motion can be defined as projected uniform circular motion. Uniform circular motion occurs when a body moves around the circumference of a circle at a constant rate (degrees per second) Plotting the amplitude of displacement (or pressure variation) as a function of time yields the following time domain relationship (time domain waveform) Sinusoidal motion is an e. g. of simple harmonic motion. The above parameters refer to the physical description of sinusoidal vibrations. Sound can travel through solids, liquids, or gases but not through a vacuum. To understand sound transmission through a medium we must examine how the input forces influences. Amplitude of air particle displacement is proportional to applied force.