Figute 16 3. The blue part of the nail cilpper is a pair of leerers. Are they woed as firutioloss second-class or third-class levers? \( \qquad \) 4. Show the effort and load on one of the blue levers with arrows and labels. Also show the pivot point with a small triangle and a label \( \qquad \) 5. Is the effort on the lower bluc lever the same as the load on the red lejer of not? Explain your answer. \( \qquad \) \( \qquad \) \( \qquad \) 6. Can the above design be changed so that the nail clipper could cut harder objects than finger nails, for example pieces of metal? Make a schematic drawing to show how that could be done and explain why it will have a greater mechanical advantage than the design above.

In the world of levers, the nail clipper is a classic example of a second-class lever. This fascinating setup allows the load (the nail) to be positioned between the effort (the force you exert on the handles) and the fulcrum (the hinge of the clipper). This design maximizes efficiency, allowing you to exert minimal effort to achieve significant results, making clipping those nails a breeze! To illustrate how levers work, think of the blue lever on the nail clipper. When you apply force downward on the handles, the load (your nail) is pushed up at the cutting edge. The small triangle at the pivot point marks the fulcrum. You could represent the effort with an upward arrow on the handle and the load with a downward arrow on the blade, clearly showing how levers help with mechanical advantage in this everyday tool!