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en.wikipedia.org/wiki/Lever

A lever is a machine consisting of a beam or rigid rod pivoted at a .... for the 1st class lever, the r esistance is in the middle for the 2nd class lever, and the e ffort is in the middle for the 3rd class lever.

quatr.us/physics/machines/lever2.htm

A first-class lever is a stick where the fulcrum is between the weight and the energy moving the weight (your hands, for example). Some common first-class ...

www.softschools.com/examples/simple_machines/class_one_lever_examples/511

Class One Lever Examples. ... The image below is an example of a Class One Lever, sometimes called a First Class Lever. Examples of Class One ... Some simple machines are made up of two Class One Levers such as scissors and pliers.

www.reference.com/science/examples-first-class-levers-68c721a48f84f52a

Examples of first-class levers include a balance scale, a seesaw and a crowbar. A first-class lever places the fulcrum in the middle of the effort and the load....

www.innerbody.com/image_musc04/musc73.html

The first class lever is one of three classes of levers and is one possible arrangement of muscles, bones, and joints found in the human body. While less ...

www.school-for-champions.com/machines/levers_classess.htm

Jul 26, 2016 ... There are three types or classes of levers, according to where the load and effort are located with respect to the fulcrum. Since humans usually ...

prezi.com/i6wsig2o7rlr/first-class-levers-in-our-daily-life

Jun 18, 2014 ... A first class lever is a lever that has a fulcrum in the middle, load on one side ... There are variety of uses of first class levers and these are some ...

www.quora.com/What-is-a-first-class-lever-What-are-some-examples

Levers are classified by first, second, and third class, depending upon the relations among the fulcrum, the effort, and the resistance. First-class levers have the ...

www.ee.nmt.edu/~tubesing/missionpossible/simplemachines.pdf

Second Class Lever. Load or. Resistance. Effort or. Applied Force. Fulcrum. Load . Applied. Force. Force. Action. Force. Action. Other First Class. Lever Examples.