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Simple Machines - Papers Online

Simple Machines

Definitions:
Machine- A device that makes work easier by changing the speed , direction, or
amount of a force.

Simple Machine- A device that performs work with only one movement. Simple
machines include lever, wheel and axle, inclined plane, screw, and wedge.

Ideal Mechanical Advantage (IMA)- A machine in which work in equals work out;
such a machine would be frictionless and a 100% efficient IMA= De/Dr

Actual Mechanical Advantage (AMA)- It is pretty much the opposite of IMA meaning
it is not 100% efficient and it has friction. AMA= Fr/Fe

Efficiency- The amount of work put into a machine compared to how much useful
work is put out by the machine; always between 0% and ...

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goods, for transportation, ect.

In the W=F*d equation the trade of between force and distance is as you
use a machine the force goes down and distance goes up. If there was no friction
they would be equal and trade.

There are six simple machines. They are a lever, pulleys, inclined plain,
wheel and axle, screw, and wedge. The lever is used very often an example of a
lever is a broom. Your hand is the fulcrum and when you sweep it is a lever. A
lever consist of a fulcrum, effort, and resistance. A pulley is used to lift or
pull objects with a advantage. To get a advantage it matters how many lines are
going to the load. For example if there is 3 lines to the load it is a 3/1
advantage. A inclined plain is used to lift an object easier but with more work.
Instead of lifting it straight up you push it a greater distance but with less
force. A screw is a inclined plain wrapped around a cylinder post. Its like a
ramp around the screw.

A wedge is a inclined ...

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Simple Machines. (2006, July 23). Retrieved April 24, 2024, from http://www.essayworld.com/essays/Simple-Machines/49560

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PAPER DETAILS

Added: 7/23/2006 02:14:22 AM
Category: Science & Nature
Type: Premium Paper
Words: 586
Pages: 3

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