Chapter 15

2. potential energy - the potential energy of an object that is stretched or compressed
4. energy - thermal energy beneath Earth’s surface
5. conversion - the process of changing energy from one form to another
7. energy - the total potential and kinetic energy of all the particles in an object
9. energy - the energy stored in atomic nuclei
11. energy resource - a source of energy that exists in limited quantities and, once used, cannot be replaced except over the course of millions of years
14. conservation - the practice of finding ways to use less energy or to use energy more efficiently
15. energy - energy that is stored as a result of position or shape
16. potential energy - potential energy that depends upon an object’s height above a reference point
18. energy - the energy associated with the motion and position of everyday objects
19. fuels - rich deposits of hydrocarbon mixtures that formed from the remains of organisms

1. energy - the energy an object has due to its motion
2. energy - a form of energy consisting of changing electric and magnetic fields
3. energy - the energy stored in chemical bonds
6. - the ability to do work
8. energy - energy obtained from flowing water
10. energy - the energy associated with electric charges
12. energy - sunlight that is converted into usable energy
13. energy - the chemical energy stored in living things
17. energy resource - a source of energy that can be replaced in a relatively short period of time