Physics
Advanced

Simple Pendulum Period

Period of a simple pendulum.

Formula

T=2πLgT = 2\pi\sqrt{\frac{L}{g}}

Variables

LLength
gGravity

Example

A 1 m pendulum swings with period T = 2π√(1/9.8) ≈ 2.0 s.

Did You Know?

A pendulum's period is independent of its swing size and mass — the discovery that made accurate clocks possible.