Period and Frequency in Oscillatory Motion

Physics

definition

Define frequency of Periodic Motion

Frequency is the number of cycles completed per second. It is the reciprocal of period.
Note: The unit representing cycles per second is hertz.

definition

Define Periodic Motion

Periodic motion, motion repeated in equal intervals of time. Periodic motion is performed, for example, by a rocking chair, a bouncing ball, a vibrating tuning fork, a swing in motion, the Earth in its orbit around the Sun, and a water wave.
In each case the interval of time for a repetition, or cycle, of the motion is called a period, while the number of periods per unit time is called the frequency.

definition

Relation between frequency and time period

Relation between frequency and time period:

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