In this interactive object, learners read an introduction to Class 1, Class 2, and Class 3 levers and then take a quiz.
In this animated object, learners examine formulas for displacement and velocity ratios. They also view examples and calculate velocity and the velocity ratio.
Learners use trigonometry to calculate angular input forces involving Class 2 mechanical levers.
Learners apply lever ratios to calculate the mechanical advantage in basic mechanisms.