Question

How do levers work?

Answer 1

Lever

1. A lever is an ordinary machine that helps to do very fine work with a small amount of effort.
2. A lever has only two parts - a rigid beam and a fulcrum.
3. Lever is of three types - First class liver, Second class liver, and Third class liver.

Working of lever

1. A lever is a simple machine made of a rigid beam and a fulcrum as shown in the figure
2. The effort (input force) and load (output force) are applied to either end of the beam.
3. The fulcrum is the point on which the beam pivots.
4. When an effort is applied to one end of the lever, a load is applied at the other end of the lever.
5. This will move a mass upward.
6. Levers rely on torque for their operation.
7. We know that,$Mechanicaladvantageofalever=\frac{Effortarm}{Loadarm}$
8. From the concept of mechanical advantage, If the fulcrum is closer to the load, then a small amount of force is necessary to move the load.