# Simple Machines

Note by ryancg1997, updated more than 1 year ago
 Created by ryancg1997 over 7 years ago
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### Description

Note on Simple Machines, created by ryancg1997 on 11/30/2013.

## Resource summary

### Page 1

Simple Machines Make things Seem easier to do.

Remember that when you work on an action the formula looks like this:W=Fd

So you can have a trade off between force and distance to do the same workFd=dF

Simple machines use this trade off and by minimizing the effort (force) we have to put into work we are doing.....But this is a trade off, if you are going to use less force, you are going to have to do it over a greater distance

There are four types of simple machines we are studying:

Pulleys

Inclined Planes

Wheel and Axle

Levers

The basic Ideas levers is that the distance between the fulcrum can altered to minimize the amount of force needed to move a heavier object.

Some examples of Levers: crowbar wheel barrow sea-saw  scissors/pliers baseball bat

You increase the distance you go in order to minimize the force you face

This only works if there is no frictionIf there is friction:Work up incline &gt; Work straight up

Basic Idea

Levers

Inclined Planes

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