<h2>Summary</h2>
<ul>
<li>Simple machines are devices that can be used to multiply or augment a force that we apply – often at the expense of a distance through which we have to apply the force.</li>
<li>The ratio of output to input forces for any simple machine is called its mechanical advantage</li>
<li>A few simple machines are the lever, nail puller, wheelbarrow, crank, etc.</li>
</ul>
<h2>Glossary</h2>
<h3>mechanical advantage</h3>
<p>the ratio of output to input forces for any simple machine</p>
<section data-element-type="conceptual-questions"></section>

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Summarizing Simple Machines

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Learn how to understand equilibrium, stability, and problem-solving strategies in the context of forces and torques, including the use of simple machines and muscles and joints.


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Summarizing Simple Machines

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