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8 - Mod 3 Lesson 1
Introduction to Wave Properties
Term | Definition |
---|---|
Mechanical wave | A wave that requires a medium through which to travel |
Medium | a physical environment in which phenomena occur |
Transverse wave | a wave whose particles oscillate perpenducular to the direction that the wave travels |
Crest | Highest point of a wave |
Trough | Lowest point of a wave |
Longitudinal wave | a wave in which the particles of the medium vibrate parallel to the direction of wave motion |
Compression | The part of a longitudinal wave where the particles of the medium are close together. |
Rarefaction | a part in a longitudinal wave where the particles of the medium are spread apart |
Surface waves | a wave that travels along the surface of a medium |
Amplitude | the maximum displacement on either side of the equilibrium (midpoint) position. |
Wavelength | the distance from any point on a wave to an identical point on the next wave |
Frequency | the number of complete wavelengths that pass a point in a given time |
meters per second (m/s) | Wave Speed is measured in |
Hertz (Hz) | Wave frequency is measured in |
Meters (m) | wavelength is measured in |
decreases | When frequency increases, wavelength _______. |
increases | When amplitude increases, energy ______. |
stays the same | When amplitude increases, wavelength ________ |