Unit 4 Vocab

4. The ________ of a machine is the output force multiplied by the output distance. It is the work exerted by the machine.
5. James Watt was looking for a way to compare the power outputs of steam engines he had designed. He came up with ____ as another unit of power that is equal to 746 watts.
8. The SI unit for power is ____ which is equal to 1 joule per second.
11. Unit for force
12. the force exerted by a machine
14. Unit for time
16. the mechanical advantage determined by measuring the actual forces acting on a machine, including friction
17. the force exerted on a machine
18. the distance the input force acts through
19. The percentage of the work input that becomes work output is

1. The _______ equals the input force multiplied by the input distance. It is the work applied to the machine.
2. A device that makes work easier and changes a force
3. The SI unit for work is ____ which is equal to 1 Newton-meter.
6. the distance the output force is exerted through
7. Unit for distance
9. The rate at which work is done is ____.
10. If there is no movement, then there is no ____ done because it is the product of force and distance.
13. The number of times a machine increases a force exerted on it is its
15. ________ of a machine is the mechanical advantage in the absence of friction found by dividing input distance by output distance.