Work and Simple Machines

Work is done when a force causes an object to move in the direction of the force. It is calculated as Work = Force x Distance.

A simple machine is a device that makes work easier by allowing us to apply a smaller force over a greater distance.

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

An inclined plane allows you to lift heavy objects by spreading the work over a longer distance, reducing the amount of force needed.

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

A pulley is used to change the direction of a force, making it easier to lift heavy objects.

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

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

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

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