Simple machines in the real world.

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Presentation transcript:

Simple machines in the real world.

Machine- something that makes work seem easier by changing the size or direction of a force.

Work – using a force to move an object a certain distance. Who is doing more work?

Machines are: Tools we use to make work easier. Types of machines: Levers Screws Wedge Pulley Inclined Plane Wheel and Axle

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

But can you recognize simple machines in the real world?

Lever Wheel & Axle Wedge

Pulley Wheel and Axle Screw

Lever Pulley Screw

Inclined Plane Lever

Lever Wheel & Axle Screw

Wheel & Axle Lever Screw

Pulleys

Wedges

Lever

Inclined Planes

Levers

Now it’s your turn! Can you name all six simple machines from memory? Lever Wheel & Axle Wedge Screw Inclined Plane Pulley

What simple machines can be found in this compound machine?

From the Tab Choose an Activity… Click Simple Machines Assignment… Go to www.edheads.org 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.