Waves

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1. Wave
A distortion in a material or medium- individual parts of the material show periodic motion, but the waveform itself moves through the material.
2. Transverse Wave
The direction of oscillation of a particle is perpendicular to direction of propagation of the wave. eg. electromagnetic waves, such as light.
3. Longitudinal Wave
Direction of oscillation of a particle is the same as the direction of propagation of the wave.
4. Amplitude (A)
The maximum distance travelled by a particle in the wave medium, measured with respect to the undisturbed position. (Unit: metres)
5. Period (T)
The time required for one complete "up-down" oscillation cycle.
6. Wavelength (λ)
The horizontal distance between two crests on the wave (or two troughs).
7. Frequency (f)
• The rate at which the wave is travelling
• Unit: s-1 or Hertz (Hz)
• 1 Hz = 1 s-1
8. Speed
Relationship between speed, wavelength, and frequency
9. Sound
A longitudinal wave motion created by a vibration of e.g. a guitar string, human vocal cords, the diaphragm of a loudspeaker
10. The Doppler Effect
The change in sound frequency experienced by a listener when there is a non-zero relative velocity between the source of sound and the listener.
 Author: McDeirdree ID: 271849 Card Set: Waves Updated: 2014-04-25 14:51:04 Tags: Physics Folders: Physics Description: Wave definitions Show Answers: