Example 1
A 1.00 m pendulum at g = 9.81 m/s² has a period of about 2.01 s.
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Physics tools › Simple pendulum period
Mendeleev · Physics
Simple pendulum period
The period of a simple pendulum depends on its length and on gravity, not on the bob’s mass.
Formula usedT = 2π√(L/g)
Visual cue · pendulum
Calculate
Simple pendulum period
What do the symbols mean?
Tperiod
Llength
ggravitational field strength
Two worked examples
Example 2
A 25 cm pendulum has a period close to 1.00 s near Earth’s surface.
Good to knowThe usual formula is the small-angle approximation; it becomes less accurate for large oscillation angles.