Question

Answer the following questions brief What is a l
ever? Explain its parts. a. M​

Answer 1

A lever is a simple machine that can make work efficient with minimum effort.

• A lever usually contains a rigid beam with a fixed point called the fulcrum.
• The other two important parts in the working of a lever are the points of load and effort. Depending on the positions of each of these points on the beam, a lever is classified into different groups.
• In a first-class lever, the fulcrum is in-between the load and effort. An example is a see-saw.
• The load comes between the fulcrum and effort in a second-class lever. For example, a bottle opener.
• A third-class lever has the effort in-between the fulcrum and the load. A tong is an example of a third-class lever.