Without going through all the derivations, unless some one wants me to (I could show you my physics notes), the equation for a period of a pendulum with small amplitude (meaning reasonable amplitudes, i.e. less than 45O from the normal) is :

T = 2 * Pi * sqrt(L / g)

where L is the length of the pendulum

g is the acceleration due to gravity where ever the pendulum is (9.8 m/s2 on

earth)

To

too

two

Compound pendulum is a physical pendulum whereas a simple pendulum is ideal pendulum. The difference is that in simple pendulum centre of mass and centre of oscillation are at the same distance.

A shorter pendulum has a shorter period.

A longer pendulum has a longer period.

The longer the length of the pendulum, the longer the time taken for the pendulum to complete 1 oscillation.