Topic explanation

Standard explanation

The acceleration due to gravity can be determined experimentally from the measured period and length of a simple pendulum.

Key points

• T=tN
• T²=(4π²/g)L
• slope = 4π²/g
• g=4π²/slope
• Better Experimental Method: Pendulum period: T=2π√(Lg) Square: T²=4π²Lg Rearrange: g=4π²LT² Therefore, meas
• Graph Method: From: T²=(4π²/g)L a graph of `T²` against `L` is a straight line. Slope: slope = 4π²/g
• Pendulum timing provides an experimental measurement of g.

Labelled diagram