Levers
Use a lever to lift a pig, turkey, or sheep. A strongman provides up to 1000 newtons of effort. The fulcrum, strongman, and animals can be moved to any position to create first-, second-, or third-class levers.
Launch GizmoLevers
Use a lever to lift a pig, turkey, or sheep. A strongman provides up to 1000 newtons of effort. The fulcrum, strongman, and animals can be moved to any position to create first-, second-, or third-class levers.
5 Minute Preview
Use for 5 minutes a day.
LEARNING OBJECTIVES:
- Identify the parts of a lever.
- Discover that a lever can be used to lift heavy objects using less force.
- Describe the relationship between the applied force (effort) needed to lift a load and the distance from the fulcrum to the applied force.
- Calculate mechanical advantage.
- Diagram a first, second, and third-class lever.
VOCABULARY:
- effort, first-class lever, fulcrum, lever, load, mechanical advantage, second-class lever, third-class lever