Lever Arm Mechanical Advantage Range of Motion Coefficient of friction Identify tension, gravity, normal, and friction forces.[2] Identify classes of levers and explain advantages and disadvantages of...Lever Arm Mechanical Advantage Range of Motion Coefficient of friction Identify tension, gravity, normal, and friction forces.[2] Identify classes of levers and explain advantages and disadvantages of each in terms of mechanical advantage and range of motion.[2] Apply lever and equilibrium concepts to solve for forces and find mechanical advantage in scenarios involving levers. Apply normal force and friction coefficient concepts to calculate static and kinetic frictional forces.[3]