# Question #d1f95

Mar 5, 2017

There will be no change. The copper bob is more dense, so it will have more mass, but mass does not influence the period of a pendulum.

#### Explanation:

The formula for the period of a pendulum is

$T = 2 \setminus \pi \sqrt{\frac{l}{g}}$

Where T is the period in seconds, l is the length of the pendulum in metres and g is the acceleration due to gravity in $m {s}^{- 2}$.

As you can see, the mass of the pendulum does not appear anywhere in this calculation.