|A machine is a device that helps make work easier to perform. The six simple machines are: |
A lever is a simple machine that makes work easier for use; it involves moving a load around a pivot using a force.
- Wheel and Axle
- Inclined Plane
There are three different classes of levers:
- In a Type 1 Lever, the pivot (fulcrum) is between the effort and the load.
Examples: see-saw, pliers
- In a Type 2 Lever, the load is between the pivot (fulcrum) and the effort.
Examples: nail clippers, staplers
- In a Type 3 Lever, the effort is between the pivot (fulcrum) and the load.
Examples: fishing rod, tongs
Directions: Answer the following questions.