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Simple Machines
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Definitions Simple machine—A machine that makes work easier by multiplying a force or changing the direction of a force Effort– work put into a machine also know as work in or win Load—work done by the machine, also know as work out or wout Mechanical Advantage (MA)—Force out/force in Efficiency=(Work out/work in) * 100%
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Simple machines Simple machines do a lot of things, but one thing they never do is multiply work. Why is that? A compound machine occurs when you put more than one simple machine together.
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Levers 1st class
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Levers 1st class
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Lever 2nd class
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Lever 2nd class
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Lever 3rd class
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Lever 3rd class What advantages does this type of lever have?
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Levers in Action How a backhoe works
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Lever --Wheel and Axle
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Lever --Wheel and Axle
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Lever --Pulley
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Lever --Pulley
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Inclined plane Ramp Screw Wedge
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Lever Ramp
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Inclined Plane --Ramp
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Inclined plane --Screw
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Inclined plane --Screw
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Inclined plane --wedge
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Inclined plane --wedge
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Wedge—Hull Design
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