| A | B |
|---|
| effortarm | distace |
| work | force times distance |
| efficiency | comparrson of work output yo work input |
| joule | metric unit of work |
| mechanical advantage | number of times a machine multiplies the effor frce |
| compound machine | machine that combines two or more simple machines |
| wheel | a simple machine of 2 wheels that turn around a path |
| inclined machine | slanted surface |
| gears | toothed wheels |
| simple machine | divce that changes the size of direction of work |
| lever | bar that is free to turn about a fixed point |
| pully | rope wrapped around a weel |
