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Published byMeagan Tucker Modified over 9 years ago
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Simple Machines Grades 3-4 Created by: Audrey Janco
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Simple machines are used every day to make our lives easier. A flagpole is an example of a simple machine.
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There are six simple machines. Pulley Lever Wedge Wheel and axle Inclined Plane Screw
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Pulley A pulley is a simple machine that uses grooved wheels and a rope to raise.
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Levers A lever is a stiff bar that rests on a support called a fulcrum which lifts orr moves loads. Scissors are an example of a lever we use daily.
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Wedge A wedge is an object with at least one slanting side ending in a sharp edge. Can you name this wedge?
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A wheel and axle consists of a wheel with a rod called an axle through its center that lifts or moves loads.
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Inclined Plane An inclined plane is a slanting surface connecting a lower level to a higher level.
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Screw A screw is an inclined plane wrapped around a pole which holds things together or lifts materials.
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See how many simple machines you can name.
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