1. BY Patrick Durkin Stephen Riley, and Becca
SIMPLE MACHINES
BY Patrick Durkin Stephen Riley, and Becca

2. Table Of Contents WEDGES INCLINE PLAINS WHEEL and AXLE PULLEY SYSTEM
SCREWS
LEVERS
COMPOUND MACHINES

3. WEDGES
Wedges are used to separate two objects apart, or separate a section of an object. For example, a wedge separates a log into two pieces. Also, an axe is a wedge. The blade of the axe is the wedge.
The origin of the wedge is un-known because it was being used in the stone ages (cave-men).
Movie clip
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4. Inclined Plaines (don’t pay attention to the writing)
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5. Inclined Plaines
An inclined plane is a ramp basically. It curves up-right, or slants down. An incline plane helps with various jobs like movers. They slide the object down the ramp from the truck. Screws are also inclined planes because it separates the ground and/or surface. Miners used inclined planes to pull the wagons across rough grounds.
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6. Wheel and Axle & Pulley System
By Stephen Riley
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7. Pulley System
A pulley is a wheel with a groove between two flanges around it’s circumference
Pulleys are used to change the direction of an applied force, transit rotational motion, or realize a mechanical advantage in either a linear or rotation system of motion.
The two different types of pulleys are movable and fixed… Fixed: Pulleys that are “fixed” or anchored into place.
Movables: Pulleys that are free to move in space.
One example of a pulley system is an elevator.
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8. Wheel and Axle A Wheel and Axle is a lever that
Rotates in a circle around a center point.
The larger wheel (outside) rotates
around the smaller wheel.
One of the most common wheel and
Axles is the wheel of a truck.
Some examples of a wheel and axle are screwdrivers, doorknobs, windmills, and gears.
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9. Screws and Lever
By Becca Kolenkiewicz
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10. Levers
a lever (from French lever, "to raise", c.f. a levant) is a rigid object that is used with an appropriate fulcrum or pivot point to multiply the mechanical force that can be applied to another object. This is also termed mechanical advantage, and is one example of the principle of moments. A lever is one of the six simple machines.
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11. Screw
A screw is a cylinder with an inclined plane wrapped around it. There is a special type of screw called the Archimedes Screw.
The screw was invented by Archimedes
There are many types of different types of screws in the world.
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12. Compound Machines
A compound machine would be at least two of the simple machines combined together to form one machine that works just as well.
An example of a compound machine would be an axe, combining a lever and a wedge.
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13. Credits Master slide show: Patrick Durkin Screws and Levers: Becca
Wheel and Axel, and Pulleys: Stephen
Special thanks to Patrick Durkin, but we’re but we’re not sure why yet.
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14. Bibliography