Types of Lever

Q1

What is a lever?

A lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. A lever is a rigid body capable of rotating on a point on itself.

Q2

Name the different types of lever.

The three different types of lever are:

• First class lever
• Second class lever
• Third class lever

Q3

Give some examples of second class levers.

Give some examples of second class levers.
Wheelbarrow, staplers, doors or gates, bottle openers, nutcracker, nail clippers, etc.

Q4

State TRUE or FALSE: Fishing rod is a first class lever.

FALSE. Fishing rod is an example of a third class lever.

Q5

What are the different parts of a lever?

There are three parts in a lever:

• Fulcrum – the point at which the lever rotates.
• Input force (also called the effort) – the force applied to the lever.
• Output force (also called the load) – the force applied by the lever to move the load.