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12 chapter
| Question | Answer |
|---|---|
| work | when you exert a force on the object that caused the object to move some distance |
| work formula | work=forcexdistance |
| how does a plane fly? | berniellis princapl the curved wing is less force down creating a net force |
| efficiency formula | efficiency=output work divided by inputwork x 100% |
| mechanical advantage formula | mechanical advantage= output force divided by input force |
| machine | a device that changes the amount of force exerted or the direction in which the force is exerted |
| input force | the force exerted on the machine |
| joule | amount of work done when you exert a force of 1 newton to move an object a distance of 1 meter |
| berniellis princaple | the pressure in a fluid increases as the speed of the fluid increases |
| mechanical advantage | the number of times the force exerted on a machine is multiplyed by the machine |
| output force | the force exerted on an object by a machine |
| actual mechanical advantage | the mechanical advantage that a machine provides in a real situtation |
| ideal mechanical advantge | the mechanical advantage that a macine would have without friction |
| efficency | the precentage of the input work that is converted to a output work |
Created by:
erinpinkperson
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