Types of Levers

1.Give three examples of levers that we use in our daily life and mention their class.

Three levers that we use in our daily life are-

• Plier: Class I lever.
• Scissors: Class I lever.
• Wheelbarrow: Class II lever.

2.What is the importance of a fulcrum in a lever?

• The fulcrum is the pivot point of the lever.
• The fulcrum is situated between the load and effort point, the distance between load and fulcrum is called the load arm and the distance between effort, and the fulcrum is called the effort arm.
• If the fulcrum is closer to the load, the lever has a bigger effort arm which takes minimal effort to work.
• If the fulcrum is closer to the effort, the lever has a bigger load arm that takes more effort.