Imagine a person is lifting a refrigerator using a lever. What is the purpose of using the lever?

Answer 1

The purpose of using a lever when lifting a refrigerator is to reduce the amount of force needed to lift the object. A lever is a simple machine that consists of a bar that pivots around a fixed point, called a fulcrum. By placing the fulcrum in the right position and applying a small amount of force at one end of the bar, the lever can amplify the force and make it easier to lift the object at the other end. In this case, the person lifting the refrigerator can use the lever to multiply the force they apply to the fridge and lift it with less effort.