Simple Machines Study Guide

Simple machines are tools that make work _____________.

• easier

• harder

This simple machine is a stiff bar that moves about a fixed point (a fulcrum). It is used to push, pull, or lift things.

• lever

• wedge

• wheel and axle

• pulley

This simple machine is a flat surface that is raised so one end is higher than the other. It helps move heavy objects up or down.

• screw

• wheel and axle

• inclined plane

• pulley

This simple machine is wide at one end and pointed at the other to help cut and split other objects.

• screw

• wedge

• lever

• inclined plane

This simple machine is a rod attached to a wheel. This simple machine make it easier to move or turn things.

• screw

• lever

• wheel and axle

• pulley

This simple machine is an inclined plane wrapped around a cylinder or cone. A common use of this simple machine is to hold things together.

• wedge

• inclined plane

• pulley

• screw

This simple machine is a wheel that has a rope wrapped around it. It can be used to lift heavy objects by changing the direction or amount of the force.

• pulley

• lever

• wheel and axle

• wedge

This is a combination of two or more simple machines.

• A combo machine

• A compound machine

• A connected machine

• A harder machine

Simple machines can help us: __________ a heavy object.

• distance

• lift

• together

• apart

Simple machines can help us: move a heavy object over a __________.

• distance

• lift

• together

• direction