Mechanical Waves

	H	*Mechanical Waves*
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				The medium itself does not travel as a wave. Its constituent particles undergo back and forth/up and down motion around an equilibrium point. What does travel is the pattern of the wave disturbance. We have to put energy into a system to set the wave in motion. Waves transport energy from one place to another. Waves do not transport matter from one place to another. The disturbance travels with a definite speed determined by the mechanical properties of the medium.
			*Sound Wave*	*Water Wave*

			*Acoustics Animations Dr. Dan Russell Kettering University Applied Physics*
			*Periodic Motion*

		*velocity = wavelength x frequency*





		*Reflections of a Wave*
				*From a fixed end the incident wave will reflect 180° out of phase. The reflected wave will be inverted.* From a free end the incident wave will reflect in phase. The reflected wave will not be inverted.
		*Standing Waves and Normal Modes*