A class 3 lever is a type of lever where the effort is placed between the fulcrum and the load. This means that the load is closer to the fulcrum than the effort, resulting in a mechanical advantage that favors distance over force.
One example of a class 3 lever is a pair of tweezers. In this case, the fulcrum is the point where the two arms of the tweezers pivot, the load is the object being grasped by the tweezers, and the effort is the force applied by the user's fingers to squeeze the tweezers together. The closer the object is to the pivot point, the easier it is for the user to manipulate and grasp small objects with precision.
Describe a class 3 lever and give one example of a class 3 lever.
1 answer