# Question 398ac

Apr 4, 2016

A few ideas below...

#### Explanation:

Not to sure on the context of this, but if you are using the laws of Simple Harmonic Motion to determine say, gravity, using T=2pisqrt((L/g)#
Then:

1. A pendulum only exhibits SHM for small displacements (systematic error if too large)
2. You should measure the period by determining the time of as large a number of oscillations as possible (reducing random errors)