What is the term for the interval of time required for the completion of a cyclic motion or recurring event?

The term for the interval of time required for the completion of a cyclic motion or recurring event is "Period." In physics and other scientific disciplines, the period signifies the time taken for one complete cycle of a repeating event, such as the swing of a pendulum, the rotation of a planet, or the oscillation of a wave. It is measured in units of time, such as seconds, minutes, or hours.

Understanding the concept of period is fundamental in various fields, including geology, where one might study cyclical processes in sedimentation or climate changes over geological time scales. The period allows geologists to correlate different layers of strata or to assess the timing of events like volcanic eruptions or tectonic shifts.

In contrast, duration refers to the total time over which an event occurs and does not specifically relate to the cyclical nature of the event. Frequency, on the other hand, denotes the number of cycles that occur per unit of time and is inversely related to the period. Interval time could represent the elapsed time between two events, but does not specifically denote the concept of a single cycle's completion.