pendulum | Definition, Formula, & Types | Britannica
Measurement and Uncertainty: The Giant Pendulum Experiment — Finding Patterns
Pendulum02_09
Pendulum Action experiment
Pendulum Lab
Swinging Science | PhysicsCentral
Simple pendulum lab. In this experiment, the length of the string will be altered to see the affect on the time period. - International Baccalaureate Physics - Marked by Teachers.com
Exploring quantum gravity—for whom the pendulum swings. | NIST