Which of the following will reduce the frequency of oscillation of a simple pendulum _____?

A. Increasing the mass of the bob
B. Decreasing the mass of the bob
C. Increasing the length of the string
D. Decreasing the length of the string
E. Increasing the amplitude of oscillation

Correct Answer:

Option C – Increasing the length of the string

Explanation

The swing rate of a pendulum is determined by its length. The longer the pendulum, the slower the pendulum swings and vice-versa.