Traveling Wave Characteristics

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1. Transverse Waves. Particles in the disturbed medium move perpendicular to the wave of motion.

 

Helpful Videos (Transverse-Longitudinal, Mechanical)
 
2. Longitudinal Waves. particles in the disturbed medium vibrate parallel to the wave of motion.

3. Crest, trough, amplitude, wavelength ... helpful link

4. Wave speed.

velocity = wavelength/period

remember: period = 1/frequency ... so velocity = (wavelength)(frequency)

Before our graphs represent vertical displacement vs time. (Crest to Crest = PERIOD)

Now we get graphs of vertical displacement vs horizontal displacement. (Crest to Crest = WAVELENGTH)

5. Wavefronts and Rays. Distance between subsequent wavefronts is the wavelength. Rays represent the direction the wavefronts travel. Rays are always drawn perpindicular to the wavefronts.

PG 225: 3, 7, 8, 11-13, 15-19.