BY: JESSICA BROGAN, HATCHER BALLARD, AND KATIE NEWS

6 Simple Machines

Table of Contents

Wheel and AxleWedgeLeverInclined PlaneScrewPulleyCompound MachinesReferences

Wheel and Axle

• There are 2 ways to work a wheel and axel. First you can us it by having two wheels at the end of a axle. The wheels will then roll providing movement.

• The second way is to wrap a rope around a supported wheel with a lever sticking out. An object can be tied to the other end. By turning the lever, the rope either moves the object toward or away from you.

The wheel and axel is one of the 6 simple machines.

It is made of two circular objects that are out together and rotate in a common axis.

Back to TOC

Wedge

A wedge is used to separate two objects, or to lift something

The wedge has been used since the stone ageA wedge can also be used to hold an object in

place, for example a door stop is a wedge

picture from

http://en.wikipedia.org/wiki/Wedge_%28mechanical_device%29 Back to

TOC

Lever

There are 3 types of levers, 1st , 2nd , and 3rd The type of lever depends on the input effort First Class Second Class Third

Class

Back to TOC

Back to TOC

Incline Plane

A flat surface with different size endpoints.Examples:-Wedges-Ramp-Airplane wings-Plows-hatchets

Back to TOC

Incline Plane (cont.)

The force is normally directed away from the object (in picture)

Used to raise and object.Less effort is needed to raise the object when

you are using an Inclined Plane.

Back to TOC

Incline Plane

A flat surface with different size endpoints.Examples:-Wedges-Ramp-Airplane wings-Plows-hatchets

Incline Plane (cont.)

The force is normally directed away from the object (in picture)

Used to raise and object.Less effort is needed to raise the object when

you are using an Inclined Plane.

Screw Notes

Screws are related to a inclined plane.

When you use a screwdriver to twist a screw into a piece of wood you put a input force on the screw, then they put an output force on the wood.

Back to TOC

Screw Notes continued The screw is really a inclined plane with a

wedge tip.The inclined plane is the thread wrapped

around the screw.The wider the thread of the screw the harder

it is to turn.

Back to TOC

References

http://en.wikipedia.org/wiki/Pulleyhttp://en.wikipedia.org/wiki/Wedge_%28mech

anical_device%29

Back to TOC

Resourceshttp://library.thinkquest.org/CR0210120/whe

el%20and%20axle.htmlText book page 124

Back to TOC

Refrences

Picture is from http://myword.info/images/screw_1a.jpge is from

Text book page 121 http://teacher.scholastic.com/dirtrep/simple/

screw.htm

Back to TOC

Incline Plane

A flat surface with different size endpoints.Examples:-Wedges-Ramp-Airplane wings-Plows-hatchets

Back to TOC

Incline Plane (cont.)

The force is normally directed away from the object (in picture)

Used to raise and object.Less effort is needed to raise the object when

you are using an Inclined Plane.

Back to TOC

pulleys

Like most machines, pulleys help make work easier.

They are easy to make and can be used from different distances

They are used to help people pull heavy objects easily.

Example: A person building a building uses the pulley to bring up bricks and metal, and other things to help make the job easier.

Back to TOC

Pulleys (cont.)

It is also called a sheave or block.It is made up of one or more pulleys, some

rope and cable.More examples:-sewing machines-Flag poles-Water pumps-engines-water pumps Back to TOC Table of

Contents

Compound Machine

Makes work easier.Helps people do their jobs better.A compound machine is two simple machines

put together to make more easier. http://www.youtube.com/watch?v=Hu2GW5lsu4c

Back to

TOC