©adam crowley 2007
TRANSCRIPT
©Adam Crowley 2007
http://www.fi.edu/qa97/spotlight3/spotlight3.html
©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
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©Adam Crowley 2007
• A straight rod or board• Turns on a point
known as a fulcrum.
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Door Hinge
See-Saw
Wheel Barrow
Pull Tabs
©Adam Crowley 2007
©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
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Knife
Scissors
Axe
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©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
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Ramps
Stairs
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©Adam Crowley 2007
• 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
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Dump Trucks
Door Knob
WagonFaucet
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©Adam Crowley 2007
•An inclined plane wrapped around a shaft or cylinder.
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Bolts and Screws
Spiral Staircase
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©Adam Crowley 2007
1. An axe is an example of a:a. Pulley b. Wedge c. Wheel and Axle
2. You would use a pulley to:a. Cut food b. Hold pieces of wood together c.
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. screw b. fulcrum c. door knob
5. A pull tab on a soda can is an example of a: a. inclined plane b. screw c. lever
©Adam Crowley 2007
• Edheads:http - www.edheads.org/activities/simple-machines/• Unitedstreaming - http://www.unitedstreaming.com• Findsounds - http://findsounds.com/• CA Dept. of Education: http://www.cde.ca.gov/be/st/ss/scgrade3.asp• Mikids - http://www.mikids.com/Smachines.htm• Inventor’s Toolbox -
http://www.mos.org/sln/Leonardo/InventorsToolbox.html• The Franklin Institute - http://www.fi.edu/qa97/spotlight3/spotlight3.html • Gettyimages -
http://creative.gettyimages.com/source/classes/FrameSet.aspx?&UQR=sbmupa&pk=4&source=front&lightboxView=1&txtSearch=gears&selImageType=7&chkLicensed=on&chkRoyaltyFree=on&chkNLM=on