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Simple machines in the real world.
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Machine- something that makes work seem easier by changing the size or direction of a force.
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Work – using a force to move an object a certain distance.
Who is doing more work?
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Machines are: Tools we use to make work easier.
Types of machines: Levers Screws Wedge Pulley Inclined Plane Wheel and Axle
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Let’s Review First!!! Pulley A grooved wheel with a rope running through the groove Inclined Plane A slanting surface Screw An inclined plane wrapped around a cylinder Lever A rod or board that pivots at one end Wedge Has a slanting side ending in a sharp edge Wheel and Axle A wheel with a rod or axle through center
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But can you recognize simple machines in the real world?
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Lever Wheel & Axle Wedge
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Pulley Wheel and Axle Screw
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Lever Pulley Screw
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Inclined Plane Lever
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Lever Wheel & Axle Screw
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Wheel & Axle Lever Screw
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Pulleys
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Wedges
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Lever
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Inclined Planes
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Levers
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Now it’s your turn! Can you name all six simple machines from memory?
Lever Wheel & Axle Wedge Screw Inclined Plane Pulley
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What simple machines can be found in this compound machine?
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From the Tab Choose an Activity… Click Simple Machines
Assignment… Go to From the Tab Choose an Activity… Click Simple Machines Complete one Activity from The House and one activity from The Tool Shed, as well as one more of your choosing. Print your results.
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