Simple Machines
Published on Nov 22, 2015
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SIMPLE MACHINES
WHEEL AND AXLE
These two parts act as one simple machine.
They roll and are found on cars, bikes, and wheelbarrows.
WHEEL AND AXLE
WEDGE
This simple machine can be used to split things apart or hold a door open.
Photo by miguel77
WEDGE
SCREW
Examples of this simple machine are used to hold things together. It is made up of an inclined plane wrapped around a cylinder.
Photo by rickihuang
SCREW
LEVER
This simple machine can be used to lift a weight. It has a fulcrum, which can be located in the center, near the end, or at the end of this simple machine.
Photo by susanvg
LEVER
PULLEY
A rope, a wheel with a groove in it, and a weight male up this simple machine. You can pull up or down on the rope to lift the weight.
Photo by Arlo Bates
INCLINED PLANE
A heavy object could be rolled up this simple machine, instead of lifting it straight up.
Photo by kevin dooley
