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# Chapter 11 vocab.

### Physics

TermDefinition
Pendulum a weight hung from a fixed point so that it can swing freely backward and forward, especially a rod with a weight at the end that regulates the mechanism of a clock.
Cycle a series of events that are regularly repeated in the same order
Frequency the rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second.
Amplitude the maximum extent of a vibration or oscillation, measured from the position of equilibrium.
period the interval of time between successive occurrences of the same state in an oscillatory or cyclic phenomenon, such as a mechanical vibration, an alternating current, a variable star, or an electromagnetic wave.
Oscillator a device for generating oscillating electric currents or voltages by nonmechanical means.
Damping a decrease in the amplitude of an oscillation as a result of energy being drained from the system to overcome frictional or other resistive forces.
Linear motion (also called rectilinear motion) is motion along a straight line, and can therefore be described mathematically using only one spatial dimension.
Harmonic motion oscillatory motion under a retarding force proportional to the amount of displacement from an equilibrium position.
Hertz the SI unit of frequency, equal to one cycle per second.
Phase adjust the phase of (something), especially so as to synchronize it with something else.
Created by: 1959661958