Does anybody know anything about Levers?

Question

how do levers work?

Answer 1

Archimedes certainly did. He said, "If you give me a lever and a place to stand, I can move the world."

Answer 2

#Leverage is a factor by which lever multiplies a force - it is therefore related to mechanical advantage. The useful work done is the energy applied, which is force times distance. Therefore a small force applied over a long distance is the same amount of work as a large force applied over a small distance. The trick is converting the one into the other. The requisite mathematics was developed in the third century B.C. by Archimedes.

The simplest device for creating leverage is the lever. A lever is a stick which rests on a fulcrum near one end. When you push the long end of the stick down a long ways, the short end moves a small distance up with great force. With this device a man can easily lift several times his own weight.

Other common devices that achieve leverage include the wrench, various pulley arrangements, a jack, and hydraulic brakes.

#In physics, a lever is a rigid object that is used with an appropriate fulcrum or pivot point to multiply the mechanical force that can be applied to another object. This is also termed mechanical advantage, and is one example of the principle of moments. A lever is one of the six simple machines.
#Levers can be used to exert a large force over a small distance at one end by exerting only a small force over a greater distance at the other.
#There are three classes of levers (first, second, and third-class) which represent variations in the location of the fulcrum and the input and output forces.

For more,pl.click:
http://en.wikipedia.org/wiki/Lever

Answer 3

Yes, many people know about levers. So what's the point?

Answer 4

The only one my children are interested in at the moment is the one marked levers alone.

Answer 5

Yes I do. They either
-magnify force: so you move a lot with little effort, that in turn moves something heavy a little. A bottle opener is an example
- magnify distance, you move little but with some force, to move a light object a long distance. A broom is an example.

Need to know more?

Answer 6

Yes...they are described in every Physics cirricula from grade 6 or so up to Universiity.

Answer 7

Levers..- Go up && Down

DEPENDS HOW YOU PULL! haha

Answer 8

Yes. Used for making movement of objects or loads easier.

Answer 9

YUP
Levers, Fulcrum Force and resistance. What else?

Answer 10

Yes I do, but i need to know your question.