Simple Machines
Published on Nov 18, 2015
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SIMPLE MACHINES
BY JOE GOLDSTEIN
Wheel and axle
A wheel and axle is a simple machine with a wheel and a rod holding it in place, and to make it roll.
Examples: Car
Bicycle
Wedge
A wedge is two inclined planes put together to cut, split, or hold objects.
Examples: needle door stopper
Screw
A screw is a cylinder with a inclined plane wrapped around it to raise, lower, or fasten objects.
Examples:
thermos cap light bulb
Inclined Plane
A inclined plane is a sloped surface used to raise objects.
Examples: Wheel chair ramp Staircase
Pulley
A pulley is a grooved wheel with a rope or cable through it used to raise or lower objects.
Examples: bike conveyor belt
Lever
A lever is a solid bar that rotates on a fixed point used to raise or lower objects. Examples: Seesaw light switch
KNIFE
COMPOUND MACHINE
AXE
COMPOUND MACHINE
