Work & Mechanical Advantage: Vocabulary

exerting a force on an object that causes the object to move some distance

• work

• power

• mechanical advantage

• efficiency

the amount of work you do when you exert one Newton of force to move the object one meter

• joule

• newton

• meter

• output force

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the rate at which work is done

• power

• work

• machine

• efficiency

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a device that allows you to do work in a way that is easier

• machine

• compound machine

• work

• power

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the force you exert on the machine

• input force

• output force

• efficiency

• mechanical advantage

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the force the machine exerts on an object

• input force

• output force

• efficiency

• mechanical advantage

the ratio of output force to input force

• work

• mechanical advantage

• efficiency

• power

the percentage of the input work that is converted to output work

• mechanical advantage

• efficiency

• joule

• machine

a simple machine that is a flat, sloped surface

• inclined plane

• wedge

• lever

• fulcrum

a device that is thick at one end and tapers to a thin edge at the other end

• wedge

• inclined plane

• lever

• fulcrum