chapter 14

3. Electric energy generated by the movement of water.
4. Chemical potential energy obtained from renewable organic materials.
7. Stored energy that can be used later.
10. An energy resource easily replaced by natural methods.
12. A fuel that has formed from the remains of plants and animals that lived in the past, including coal, petroleum (oil), and natural gas.
14. Mechanical energy in rising and falling tides.

1. An energy resource that is not replaced naturally.
2. Energy from the wind can be used to turn turbine blades attached to generators.
5. Energy produced by the sun.
6. The sum of the kinetic energy and all the forms of potential energy in a system.
8. Energy that an object possesses due to its motion.
9. Thermal energy that originates deep within the earth’s interior.
11. Energy produced by nuclear reactions.
13. The ability to do work.