Ch. 14 and 15

6. rich deposits of hydrocarbon mixtures that formed from the remains of organisms
9. a device that changes a force & helps you do work
11. the process of changing energy from one form to another
13. energy obtained from flowing water
15. the rate of doing work
17. the energy stored in chemical bonds
19. the practice of finding ways to use less energy or to use energy more efficiently
20. the energy associated with electric charges
21. a source of energy that exists in limited quantities and, once used, cannot be replaced except over the course of millions of years
24. a V-shaped object whose sides are two inclined planes sloped toward each other
25. energy dealing with temperature
26. a source of energy that can be replaced in a relatively short period of time
29. sunlight that is converted into usable energy

1. the energy associated with the motion and position of everyday objects
2. energy that travels in waves
3. the chemical energy stored in living things
4. potential energy that depends upon an object’s height above a reference point
5. the energy stored in atomic nuclei
7. a slanted surface along which a force moves an object to a different elevation
8. the potential energy of an object that is stretched or compressed
10. a rigid bar that is free to move around a fixed point
12. thermal energy beneath Earth’s surface
14. a simple machine that consists of a rope that fits into a groove in a wheel
16. energy that is stored as a result of position or shape
18. the energy an object has due to its motion
22. an inclined plane wrapped around a cylinder
23. a simple machine that consists of two rigidly attached disks or cylinders, each one with a different radius
27. the ability to do work
28. the product of distance and the force in the direction an object moves