©Adam Crowley
©Adam Crowley 2007 A pulley uses grooved wheels and a rope to raise, lower, or move a load.
©Adam Crowley 2007 Flag Pole Mini Blinds Crane
©Adam Crowley 2007
A straight rod or board Turns on a point known as a fulcrum.
©Adam Crowley 2007 Door Hinge See-Saw Wheel Barrow Pull Tabs
©Adam Crowley 2007
A wedge is an object with at least one slanting side It is an inclined plane that moves It ends in a sharp edge Cuts or splits material apart
©Adam Crowley 2007 Knife Scissors Axe
©Adam Crowley 2007
An inclined plane is a slanting surface Inclined means slanted – like a ramp It connects a lower level to a higher level
©Adam Crowley 2007 Ramps Stairs
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A wheel with a rod – called an axle Lifts or moves loads Some “wheels” of a wheel and axle don’t look like wheels Doorknob or faucet handle
©Adam Crowley 2007 Dump Trucks Door Knob Wagon Faucet
©Adam Crowley 2007
An inclined plane wrapped around a shaft or cylinder.
©Adam Crowley 2007 Bolts and Screws Spiral Staircase
©Adam Crowley 2007
1.An axe is an example of a: a. Pulleyb. Wedgec. Wheel and Axle 2.You would use a pulley to: a.Cut food b. Hold pieces of wood togetherc. Help raise a flag 3.What is the name of a simple machine with a slanting surface? 4.The fixed point around which a lever turns is called a: a. screwb. fulcrumc. door knob 5.A pull tab on a soda can is an example of a: a. inclined planeb. screwc. lever
©Adam Crowley 2007 Edheads:http - Unitedstreaming - Findsounds - CA Dept. of Education: Mikids - Inventor’s Toolbox - The Franklin Institute - Gettyimages - sbmupa&pk=4&source=front&lightboxView=1&txtSearch=gears&selIma geType=7&chkLicensed=on&chkRoyaltyFree=on&chkNLM=on