In this, the fulcrum is at one end and the force applied is on the other end. The weight is situated in the middle of these two. The order of this would be fulcrum-weight-force. The application of force at one end will result in some work done on the other end.
Example:
Wheelbarrow
Staplers
Doors or gates
Bottle openers
Nutcracker
Nail clippers
Third Class Lever
These are the levers in which the fulcrum is at one end and the force is applied in the middle and the weight is on the other end. The order is represented as a weight-force-fulcrum. In this case, we have to apply more energy to displace the weight to a longer distance.
Example:
Fishing rod
A broom
A baseball bat
A bow and arrow
Human jaw
Frequently Asked Questions – FAQs
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.
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jaimeen gujar June 25, 2020 at 4:10 pm
good
Reply
Ogar Joseph October 9, 2020 at 2:19 am
Thank you it’s very good
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Vincent November 2, 2020 at 4:13 pm
very helpful and easy to understand
Reply
subash November 3, 2020 at 5:34 pm
i am confused between pivot and fulcrum. what is their difference?
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sushmitha November 3, 2020 at 5:52 pm
The difference between pivot and fulcrum is that pivot is defined as the short liver on which a subsequent part rotates whereas fulcrum is defined as the point on which the pivot rotates.
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