The Physics
Hypertextbook
Opus in profectus

The Nature of Waves

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Discussion

definition

examples, examples, examples.

basic properties

types 1

classed by medium

types 2

classed by orientation of change

types 3

classified by duration

speed, amplitude, wavelength, period, phase, frequency

seismic energy propagates through the Earth within the 50 Hz to 0.001 Hz range! The expression "long period" (greater than 10 seconds) and "short period" (less than 1 second or greater than 1 Hz)

types 4

classified by appearance