Across
- 4. the practice of finding ways to use less energy or to use energy more efficiently
- 5. the ability to do work
- 6. potential energy that depends upon an object’s heights above a reference point
- 7. the chemical energy stored in living things
- 8. the energy stored in atomic nuclei
- 9. the energy an object has due to its motion
- 13. the process of changing energy from one form to another
- 16. a source of energy that can be replaced in a relatively short period of time
- 18. a form of energy consisting of changing electric and magnetic fields
- 20. a source of energy that exists in limited quantities and, once used, cannot be replaced except over the course of millions of years
Down
- 1. the potential energy of an object that is stretched or compressed
- 2. energy obtained from flowing water
- 3. rich deposits of hydrocarbon mixtures that formed from the remains of organisms
- 10. thermal energy beneath Earth’s surface
- 11. energy that is stored as a result of position or shape
- 12. the energy associated with the motion and position of everyday objects
- 14. the total potential and kinetic energy of all the particles in an object
- 15. sunlight that is converted into usable energy
- 17. the energy associated with electric charges
- 19. the energy stored in chemical bonds