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Definition
| A structure that has parts that are connected and influence each other in some way. |
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| What the system is to accomplish. |
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| The things put into the system. Can be physical or other (energy, movement, etc.) |
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| What is obtained from the system. Can be physical or other (energy, movement, etc.) |
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| The actions, taken by the system, that allow it to convert the input to the output. |
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| A change in location of all or part of the system. |
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| A push or a pull that can cause movement. |
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| The transfer of energy through motion. |
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Definition
A ratio of the work obtained from a system to the work put into the system.
or
A ratio of the actual mechanical advantage of a system to the ideal mechanical advantage of the system. |
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| A bar that is free to rotate about a fixed point. |
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Definition
| The output force exerted by the lever. |
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| The input force exerted on the lever. |
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| The lever's point of rotation. |
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| The distance between the load and the fulcrum. |
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| The distance between the effort and the fulcrum. |
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| A lever in which the fulcrum is between the load and the effort. |
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Definition
| A lever in which the load is between the effort and the fulcrum. |
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| A lever in which the effort is exerted between the fulcrum and the load. |
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Definition
A ratio of what is produced by a machine (output) to what is put into the machine (input).
How many times "stronger" the system is. |
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| Ideal Mechanical Advantage |
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Definition
| The mechanical advantage calculated based on measurements of dimensions of the machine. |
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| Actual Mechanical Advantage |
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Definition
| The mechanical advantage calculated based on measurements of the actual input and output of the machine. |
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| A simple machine that uses rotating parts fixed about a single axis. |
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| Wheel (of a wheel and axle) |
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Definition
| The part of the wheel and axle the you turn. |
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| Axle (of a wheel and axle) |
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Definition
| The part of the wheel and axle that turns as a result of the wheel being turned. |
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Definition
| The gear that is being turned. |
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Definition
| The gear that turns as a result of the driver turning. |
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