LEVERS CHARLIE HAFFEY NORWOOD ELEMENTARY SCIENCE.
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Transcript of LEVERS CHARLIE HAFFEY NORWOOD ELEMENTARY SCIENCE.
LEVERS
CHARLIE HAFFEY
NORWOOD ELEMENTARY SCIENCE
WHAT ARE LEVERS?
A board or a bar
Little flexibility
Pivots
On a fulcrum
LEVER TYPES
1st Class
2nd Class
3rd Class
1ST CLASS LEVER
ELE
L
Load and Effort move in opposite directions.
1ST CLASS LEVER
http://www.lhup.edu/~dsimanek/museum/themes/PanBalance.jpg
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http://cfnewsads.thomasnet.com/images/large/464/464060.jpghttp://us.cdn1.123rf.com/168nwm/pixologic/pixologic1208/pixologic120800401/14926259-human-
skeleton-side-view-of-head-isolated-in-gray.jpg
BEST 1ST CLASS LEVER
http://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&docid=t0SsEsWKRdKaDM&tbnid=cS5H8Yn5hOc6wM:&ved=&url=http%3A%2F%2Fwww.freerepublic.com%2Ffocus%2Ff-news%2F1031027%2Fposts&ei=mvaGUfOXG6aO0QHlw4GgAg&bvm=bv.45960087,d.dmQ&psig=AFQjCNEjf_ySFitf505UK4xJTIIQsEjvWQ&ust=1367885844395812
2ND CLASS LEVER
EL
2ND CLASS LEVER
http
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http://www.baileybio.com/plogger/thumbs/lrg-232-2nd_class_lever.jpg
BEST 2ND CLASS LEVER
http://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&docid=7XLUwIVxWqrnaM&tbnid=_HgDgin1ORnuFM:&ved=&url=http%3A%2F%2Fwww.humorimagez.com%2Fapps%2Fphotos%2Fphoto%3Fphotoid%3D133019428&ei=4AGHUbGxD-Xm0QGlnoHgDw&bvm=bv.45960087,d.dmQ&psig=AFQjCNF-Rd0rmIgB2w_rKfmTXjGmeW39jQ&ust=1367888725672992
3RD CLASS LEVER
E L
3RD CLASS LEVER
http://theundercoverrecruiter.com/wp-content/uploads/job-search-catapult.jpg
http://www.14-19nw.org.uk/pluginfile.php/20519/mod_page/content/4/tweezers.jpg
http://www.humankinetics.com/AcuCustom/Sitename/DAM/086/19art_Main.png
BEST 3RD CLASS LEVER
http://www.ginkandgasoline.com/wp-content/uploads/2012/10/fly-fishing-fly-casting.jpg
MECHANICAL DISADVANTAGE
E > L
Trading Force For Distance
LEVERS
CHARLIE HAFFEY
NORWOOD ELEMENTARY SCIENCE