Simple Machines

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What is a simple machine?

Back

A simple machine is a device that changes the direction or magnitude of a force, making work easier.

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What are the six types of simple machines?

Back

The six types of simple machines are lever, inclined plane, wedge, screw, pulley, and wheel and axle.

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What is a lever?

Back

A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum.

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NGSS.MS-PS2-2

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What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help raise or lower objects.

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What is a wedge?

Back

A wedge is a simple machine that is used to split or cut objects, consisting of two inclined planes.

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What is a screw?

Back

A screw is a simple machine that converts rotational motion into linear motion, often used to hold objects together.

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What is a pulley?

Back

A pulley is a simple machine that consists of a wheel on an axle or shaft that is designed to support movement and change the direction of force.

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Front

What is a wheel and axle?

Back

A wheel and axle is a simple machine that consists of a larger wheel attached to a smaller axle, allowing for easier movement of loads.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Front

How does a simple machine make work easier?

Back

A simple machine makes work easier by increasing the distance over which a force is applied, changing the direction of the force, or multiplying the force.

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NGSS.MS-ETS1-1

Front

What is mechanical advantage?

Back

Mechanical advantage is the ratio of the output force produced by a machine to the input force applied to it.