Term
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Definition
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Term
| mech. adv. of a wheel and axle |
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Definition
radius of wheel
---------------
radius of axle |
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Term
| mech. adv. of an inclined plane |
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Definition
length of incline
-----------------
height of incline |
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Term
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Definition
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Term
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Definition
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Term
| Mech. Adv. (general equation) |
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Definition
Output force
------------
Input force |
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Term
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Definition
output work
-----------
input work
x 100% |
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Term
| In order to do work on an object... |
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Definition
| the force you exert must be in the same direction as the object's motion |
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Term
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Definition
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Term
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Definition
| device that makes work easier, faster, or changes the direction of work |
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Term
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Definition
| device that makes work easier, faster, or changes the direction of work |
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Term
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Definition
| the force you exert on a machine |
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Term
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Definition
| force exerted by the machine |
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Term
| the output force is always ______ than the input force |
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Definition
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Term
| mechanical advantage of multiplying force |
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Definition
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Term
| mechanical advantage of multiplying distance |
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Definition
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Term
| mechanical advantage of changing direction |
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Definition
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Term
| define actual mechanical advantage |
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Definition
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Term
| define ideal mechanical advantage |
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Definition
| MA of a machine without friction |
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Term
| the more efficient a machine is, the ________ it is to its ideal mechanical advantage |
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Definition
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Term
| name the six basic kinds of simple machines |
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Definition
-inclined plane
-wedge
-screw
-lever
-wheel and axle
-pulley |
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Term
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Definition
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Term
| advantage of incline plane |
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Definition
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Term
| the longer the incline, the _____ input force you need to push or pull an object |
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Definition
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Term
| no machine is 100% _______ because of ________ |
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Definition
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Term
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Definition
| device that is thick at one end and tapers to a thin edge at the other end |
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Term
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Definition
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Term
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Definition
| an inclined plane wrapped around a cylinder |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| rigid bar that is free to pivot about a fulcrum |
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Term
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Definition
| the fixed point that a lever pivots around |
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Term
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Definition
| folcrum is between output & input |
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Term
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Definition
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Term
| give an example of a first class lever |
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Definition
| scissers, pliers, seesaws |
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Term
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Definition
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Term
| give examples of second class levers |
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Definition
| doors, nutcrackers, bottle openers |
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