How Levers, Pulleys and Gears Work Posted: January 17, 2025 | Last updated: January 17, 2025 This video explores different methods that can be use to amplify a force, and focuses on three types of ...

Pulleys use mechanical advantage, similar to levers, to lift loads ... This difference in speed is called the gear ratio. The driven gear has 60 teeth and the drive gear has 15 teeth.