Mechanical Advantage
What is mechanical Advantage?
Mechanical advantage: the amount by which a machine can multiply an input force (the ratio of output force to input force for a given machine)
How many lever classes are there?
3
What is a Lever?
A rigid bar that pivots at a point called the fulcrum.
What are the three classes called?
Class 1 levers, class 2 levers, class 3 levers
What are the three components of a lever?
Fulcrum, load arm, and effort arm
Explain all three classes of levers
Class 1 levers - The fulcrum is between the load force and the input force
Class 2 levers - The load force is between the fulcrum and the input force
Class 3 levers - The input force is between the fulcrum and the load force