Lesson 8: Simple Machines



A machine is a device that makes a physical task easier. That means that cars, bikes, cranes, and lifts are all machines. But machines like these are actually made up of many smaller machines called simple machines. Simple machines transfer energy from one object to another to make it move or change direction. 


 


 

In this lesson, you will learn:

  • about the types of simple machines
  • that simple machines are either distance or force multipliers

Key terms for this lesson:

  • force
  • simple machine
  • lever family
  • wedge family
  • distance multipliers
  • force multipliers