Oscillation period

Science

Definition

The oscillation period (T) is the time it takes for one complete cycle of a repeating motion, such as a pendulum swing or a spring vibration. It is the inverse of frequency (T = 1/f). The period depends on the system's physical properties, not typically on amplitude for small oscillations.

Examples

  • A playground swing completing one full back-and-forth motion in about 2 seconds
  • A mass on a spring bobbing up and down with a period determined by mass and spring constant
  • The period of a simple pendulum depending on its length and gravitational acceleration
Key Fact

T = 1/f; for a simple pendulum, T = 2π√(L/g).

Related Terms

Pendulums Springs Wave properties Restoring force

Study This Concept

Practice oscillation period with free review games in these units:

AP Physics 1 Unit 6: Simple Harmonic Motion