Question

The diagram given below shows the three kinds of levers. Name the class of lever and give one example of the class.

Answer 1

Class of Lever:

• In a Class 1 lever, the fulcrum is positioned between the effort and the load.

Example of Class 1 Lever:

1. Seesaw: A common playground equipment.
2. Scissors: Used for cutting, where the fulcrum lies between the blades (load) and the handles (effort).
3. Crowbar: Used for prying objects.

Key Features of Class 1 Lever:

1. The effort and load are on opposite sides of the fulcrum.
2. This lever can be used to gain either:
   • Mechanical Advantage (if the fulcrum is closer to the load), making it easier to lift heavy objects.
   • Speed Advantage (if the fulcrum is closer to the effort), allowing quicker movement of the load.