Simple Machines

Front

What is a simple machine?

Back

A simple machine is a device that makes work easier by allowing the user to apply less force over a longer distance, change the direction of the applied force, or reduce the amount of force needed to do work.

Front

What are the six types of simple machines?

Back

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

Front

What does a lever do?

Back

A lever is a simple machine that helps lift or move loads by using a fulcrum to change the direction of the applied force.

Front

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.

Front

Give two examples of a pulley in everyday life.

Back

Flagpole hoist and window blinds.

Front

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 with less effort.

Front

What is a wedge?

Back

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

Front

What is a screw?

Back

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

Front

What is the function of a wheel and axle?

Back

A wheel and axle is a simple machine that helps reduce friction and makes it easier to move heavy objects.

Front

What is the difference between a lever and a pulley?

Back

A lever uses a fulcrum to lift or move loads, while a pulley uses a wheel and rope to change the direction of force applied to lift objects.