- Identify the types of forces acting on an object in order to draw a free body diagram.
- Apply the concept of static equilibrium to determine the size and direction of forces, including tension, friction, normal forces.
- Identify classes of levers and explain advantages and disadvantages of each classes in terms of mechanical advantage and range of motion.
- Apply lever and static equilibrium concepts to solve for forces and calculate mechanical advantage in scenarios involving levers. 
perpendicular distance between the line of action of a force causing a torque and the pivot about which the torque occurs
in a lever, the distance from the line of action of the effort to the fulcrum or pivot
shortest distance from the line of action of the resistance to the fulcrum
the point on which a lever rests or is supported and on which it pivots
the central point, pin, or shaft on which a mechanism turns or oscillates
There are three types or classes of levers, according to where the load and effort are located with respect to the fulcrum
ratio of the output and input forces of a machine
distance or angle traversed by a body part
the state being in equilibrium (no unbalanced forces or torques) and also having no motion