Name: ________________________________________________________
Lever Lab
Set up a 1st, 2nd, and 3rd class lever.
For each lever adjust the resistance, the effort arm length, and the resistance arm length. Make observations after each individual adjustment (i.e., how did the effort change with that adjustment?)
Answer the questions below based on your observations.

Calculations:
IMA= ideal mechanical advantage = effort arm length÷resistant arm length
AMA= actual mechanical advantage = resistance÷effort

Questions
1. List 3 ways to make the effort easier:
a. __________________________________________________________
b. __________________________________________________________
c. __________________________________________________________
2. In the space below, draw and label each lever.
R = resistance RA= resistance arm
E = effort EA = effort arm
F = fulcrum