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Q: What is a lever and how is a lever useful?
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Related questions

What is the most useful machine?

the lever


What is the worlds most useful machine?

the lever


What are Useful facts and details of a first class lever?

Your arm can be considered a first class lever.


What is the world's useful machine?

What the most useful machine is, is a matter of opinion. Some would argue that the wheel is the most useful machine, and others would argue that the lever is the most useful.


Why is a third class lever useful for some tasks?

Page 223 of your science book


What class lever is a pencil?

A pencil isn't a lever at all, unless you are using it to turn force into useful motion. If you use the pencil to write with, it's closer to being a needle reading a record, as it is dragged across a surface, leaving graphite which has broken off of the main core on the paper. For a first class lever, think of a see-saw. For a second class lever, think of a wheelbarrow. For a third class, think of a pair of nail clippers, or of your forearm.


What is foot lever?

A foot lever is a lever that is operated with the foot.


Lever?

The function of a lever is used to move or lift objects.


Why is the fulcrum in a lever important?

A fulcrum in a lever is very important because without a fulcrum a lever isn't a lever , and the fulcrum is the main part of a lever.


The most common type of lever in the body is a --- class lever?

The third class lever is the most common lever in the body.


Is fishing rod first class lever?

3rd class lever


Is a bottle opener a class 1 lever a class 2 lever or a class 3 lever?

Class 1 lever