1) The document defines and provides examples of six simple machines: the inclined plane, lever, pulley, screw, wedge, and wheel and axle. 2) Each machine is defined and an example is given from images showing how each machine makes a task easier or requires less force. 3) The simple machines reduce the amount of force needed to complete tasks like lifting objects, opening bottles, and moving heavy loads.

1. Simple Machines
By Rachel & Simon

2. This is an inclined plane. The definition of an inclined plane is a sloping surface . It
makes the job shown here easier by reducing weight that the man has to push.
The part of the picture that is this simple machine is the ramp.

3. This is a lever. The definition of a lever is a straight board that pivots on its fulcrum.
The seesaw is the lever because the fulcrum is the middle part and the top part tilts up
and down. It helps by letting children have FUN!

4. This is a pulley. The definition of a pulley is that a pulley uses grooved wheels and a
rope to raise or lower a load and or an object. In the picture the pulley is a metal
ball
Chain that ,when pulled, goes over a small grooved wheel and pulls up something that
Somehow connects the circuit and causes the light bulb to turn on. The kinetic energy
is changed to electric energy when the circuit is completed and then it is changed to
Light. It helps to turn on the light.

5. This is a screw. The definition is a inclined plane wrapped around a cylinder or shaft.
In the picture the screw is the bottle cap. It helps by making the job of opening the bottle
easier.
Google Earth.lnk

6. This is a wedge. The definition is two inclined planes back to back.
The wedge in the picture is the thing sticking up. It helps by doing your cosmetic needs!

7. This is a wheel and an axel. The definition is a wheelwheels connected by a long rod, or
Cylinder. The wheel + axel in the picture is the wheels on the library cart thingy. it helps
Those poor librarians who have to transport large amounts of books to shelves.
They get help by having it roll so you can use less pressure to push.