Period (physics)

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Simple harmonic motion.svg

A period T is the time needed for one complete cycle of vibration to pass a given point.[1] As the frequency of a wave increases, the period of the wave decreases. Frequency and Period are in a reciprocal relationship that can be expressed mathematically as: Period equals the Total time divided by the Number of cycles.

  • Orbital period is the time for something to go round (orbit) something else.
  • The period of a pendulum is the time it takes from one side to the other and back.
  • An electron moving in a helical orbit that has an axis at right angles to the magnetic field has a period given by T=2πm/qB, where m is the mass of the electron, q is the charge of the electron and B is the magnetic field in the region.

Other pages[change | change source]

References[change | change source]

  1. Tongue, Benson, Principles of Vibration, Oxford University Pres, 2001, ISBN 0-195-142462