1. Mechanical Advantage Instructions
Please use this Powerpoint and Pages to gain an understanding of how mechanical advantage works and fill out the note sheet.

2. What is mechanical advantage?
The number of times a machine multiplies the effort force.

3. Lever MA Formula Lever (any class)
MA lever = distance from fulcrum to effort
distance from fulcrum to resistance
= Le Lr

4. Wheel and axle MA Formula
MA w&a = radius of wheel = rw radius of axle ra

5. Pulleys MA Formula
Fixed pulley: Always 1 (does not change the force, only direction)
Moveable Pulley/Block and Tackle = the number of sections of rope that support the object
**If the string goes up, count it
**If the string goes down, don’t count it

6. Inclined Plane MA Formula
MA inclined plane = length of incline = L height of incline h

7. Please try the calculations on the back of your Mechanical Advantage paper!