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Drag your mouse over the two photographs above to see an illustration of how this type of lever works. ... In all first class lever the Fulcrum is between the Effort and Resistance (EFR). ... List two first class levers of your own and identify the a) Fulcrum, b) effort and c) resistance.
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www.usoe.k12.ut.us/curr/Science/sciber00/8th/Machines/s...
www.usoe.k12.ut.us/curr/Science/sciber00/8th/Machines/sciber/lever1.htm
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A lever is a simple machine that makes work easier for use; it involves moving a load around a pivot using a force. Many of our basic tools use levers, including scissors (2 class 1 levers), pliers (2 class 1 levers), hammer claws (a single class 2 lever), nut crackers (2 class 2 levers), and tongs (2 class 3 levers).
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www.enchantedlearning.com/physics/machines/Levers.shtml
www.enchantedlearning.com/physics/machines/Levers.shtml
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First Class Leve ... A first class lever has the fulcrum in the middle. Some examples are a see-saw and scissors. Set up your first class lever as shown below. ... Second Class Lever...
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www.elizrosshubbell.com/levertutorial/first.html
www.elizrosshubbell.com/levertutorial/first.html
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Quiz 2: First Class Leve ... When you are finished, click here to go to the second class lever ... Which of the following is an example of a first class lever?
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www.elizrosshubbell.com/levertutorial/firstquiz.html
www.elizrosshubbell.com/levertutorial/firstquiz.html
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To construct a functional FIRST CLASS LEVER, and to study and observe how the Law of the Torques works. ... Do you think that you could build a mini balance, that would be capable of weighing letters ? To see if they were under the legal limit of 1 ounces for first class mail ? Knowing that one ounce weighs 28 grams.
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users.snip.net/~veraandscience/Labs_a/L2.html
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Here is a way to remember which type of lever is which: ... Second-class lever ... The first letter (for 1st class) is "F" and "F" for Fulcrum in the middle...
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students.ed.uiuc.edu/ljgriffi/project/grifunit6/NotesLe...
students.ed.uiuc.edu/ljgriffi/project/grifunit6/NotesLevers.htm
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A First Class Lever is a simple machine with a pivot point, called a fulcrum, that lies between the applied force, or effort, and the object that is to be moved, or load. ... These simple machines are all examples of First Class Levers that provide us scrawny humans with the mechanical advantage we need to do everyday work.
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www.edventures.com/sample/contest/frsttext.html
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The in order to set a First Class Lever into a state of Static Equilibrium, the work being applied on both sides of the fulcrum must be equal; because work is force over distance this means that loads of greater mass (greater force) must be placed closer to the fulcrum than those of lesser mass.
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www.scribd.com/doc/11686338/First-Class-Lever-Lab
www.scribd.com/doc/11686338/First-Class-Lever-Lab
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