Work, Power, and Energy

3. the rate at which work is done
5. type of energy; PE + KE
8. is relative
9. energy that an object has because it's moving
12. energy can be transferred as
14. energy that results from the relative positions of objects in a system
18. sun gets energy from
22. Only a portion of the work done by a machine is
23. PE depends on mass and height
24. V-shaped object whose sides are two inclined planes sloped toward each other
25. inclined plane wrapped around a cylinder

1. the ratio between the output force and the input force
2. work and energy are measured in
4. Energy cannot be created nor destroyed.
6. input force x input distance
7. a rigid bar that is free to move around a fixed point
10. power is measured in
11. type of PE
13. system where energy and matter are exchanged with surroundings
15. ratio of energy output to energy input
16. when a force is applied to an object and the object moves in the same direction as the applied force
17. have kinetic energy
19. work is ______ when an object is not moving
20. all living things get energy from
21. simple machine that consists of a rope that fits into a groove in a wheel