Examples ยท Engineering
Lever Simple Machine
Small force lifts big loads
A lever converts input force through distance tradeoffs to lift or move loads.
- fulcrum
- effort
- load
- mechanical advantage
- classes
Principle
Mechanical advantage equals effort arm length divided by load arm length.
Types
Class 1, 2, 3 levers change relative positions of effort, fulcrum, and load.
Everyday
Seesaws, crowbars, and wheelbarrows use lever principles.