Uploaded May 2020 | Updated September 2026, 43 minutes ago

---

This video uses one of the simulations from PhET Interactive Simulation to investigate how changing the mass, length, displacement and gravity of the pendulum affects its period.

A pendulum is a mass suspended from a string that is attached to pivot point. There is no friction so that the pendulum can swing freely. When displaced from the equilibrium position and released the pendulum's mass causes it to oscillate about the equilibrium position, swinging back and forth. The time for the pendulum to complete one complete cycle is called the period. The frequency of the pendulum is the number of cycles the pendulum completes in one second.

Social Media for Step by Step Science:
Teacher Pay Teachers Store: tinyurl.com/y6d2cdfj
Instagram: instagram.com/stepbystepscience101
Website: stepbystepscience.com
Blog: stepbystepscience.com/blog
Link Tree: https://linktr.ee/stepbystepscience

Link for sharing this video: youtu.be/AKOb6fC5p80

Support my channel by doing all of the following:
(1) Subscribe, get all my physics, chemistry and math videos
(2) Give me a thumbs up for this video
(3) Leave me a positive comment
(4) Share is Caring, sharing this video with all of your friends

Chapters:
0:00 Period od a Pendulum
3:08 The effect of the mass
4:30 The effect of the length
6:30 The effect of gravity
9:05 The effect of displacement
11:35 Example problem