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PS chapter 5 vocab
| Term | Definition |
|---|---|
| work | transfer of energy that occurs when a force makes an object move; measured in joules. |
| power | amount of work done, or the amount of energy transferred, divided by the time required by the time required to do the work or transfer the energy; measured in watts. |
| machine | device that makes doing work easier by increasing the force applied to an object, changing the direction of an applied force, or increasing the distance over which a force can be applied. |
| input force | The force that is applied to the machine. |
| output force | the force applied by the machine |
| mechanical advantage | |
| efficiency |