simple machines a simple machine is a machine with few or no moving parts. simple machines make work...

Simple Machines

A simple machine is a machine with few or no moving parts. Simple machines make work easier.

There are 6 types of Simple Machines

pulley

lever

wedge

wheel and axel

inclined plane

screw

Inclined Plane

An inclined plane is a slanting surface, such as a ramp, that connects a lower level to a higher level. An inclined

plane can be used to alter the effort and distance involved in doing work, such as lifting loads. The trade-off is that an object must be moved a longer distance than if

it was lifted straight up, but less force is needed.

Examples: Staircase, Ramp

Wedge

A wedge is an object with at least one slanting side ending in a sharp edge, which cuts material

apart.

Examples: Axe, Zipper, Knife

Screw

A screw is an inclined plane wrapped around a shaft or cylinder. This inclined plane allows the screw to move

itself or to move an object or material surrounding it when rotated.

Examples: Bolt, Spiral Staircase

Lever

A lever is a stiff bar that rests on a support called a fulcrum which lifts or moves loads. The fulcrum can be

moved depending on the weight of the object to be lifted or the force you wish to exert. Pushing down on one end of a lever results in the upward motion of the opposite

end of the fulcrum.

Examples: Door on Hinges, Seesaw, Hammer, Bottle Opener

Wheel and Axel

A wheel and axel together make a simple machine. A wheel with a rod, called an axle,

through its center lifts or moves loads.

Examples: Door Knob, Wagon, Toy Car

Pulley

A pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load.

Pulling down on the rope can lift an object attached to the rope. Work is made easier because pulling down on the rope is made easier due to gravity.

Examples: Flag Pole, Crane, Mini-Blinds

http://www.harcourtschool.com/activity/machines/simple_machines.htm

See how many simple machines you can find!

http://edheads.org/activities/simple-machines/index.htm

Powerpoint by Kim Diamond

Simple Machines: A First Look. Rainbow Educational Media. 2001. unitedstreaming. 6 September 2005 <http://www.unitedstreaming.com/>

Bibliography

Simple Machines. 100% Educational Videos. 1998. unitedstreaming. 6 September 2005 <http://www.unitedstreaming.com/>

http://www.harcourtschool.com/activity/machines/simple_machines.htm

http://edheads.org/activities/simple-machines/index.htm