Simple Machines

A simple machine is a tool that

• makes work easier

• makes work harder

• requires gasoline

All machines use _________________ to do work.

• friction

• force

• gravity

• children

Simple machines use and __________________ force in different ways.

• recycle

• read about

• change

A simple machine has very few ______________________ or none at all

• moving parts

• sides

• colors

• shapes

A ramp is a simple machine.

• True

• False

A ramp has a ___________________________________.

• shiny surface

• black surface

• icy surface

• slanted surface

It is __________________________ to push things up a steep ramp.

• harder

• easier

A lever is a simple machine.

• True

• False

• I don't know

A level has a bar that rests on a _____________________.

• point (or fulcrum)

• bed

• ramp

• flat surface

A car jack is an example of a lever.

• True

• False