PRESENTATION OUTLINE
What is it?
A lever is a simple machine that allows you to gain a mechanical advantage in moving an object or in applying a force to an object.
2 EXAMPLES
1. A hockey stick is a class 3 lever.
2. A pair of scissor and a pair of pliers are considered as double class 1 levers
Mechanical Advantage:
To increase the mechanical advantage of a lever, move the fulcrum closer to the object. The fulcrum is the pivot point of a lever.
Example problem:
If the input force of a hockey stick is 6 meters and the output force is 2.4 meters. What is the Mechanical advantage?
The answer is .4 MA. That's because you would have to divide 2.4 over 6. Therefore the answer will be .4 MA.
Demonstrate the simple machine.
(Hockey stick explanation with the hockey stick.)
