Energy

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Across
  1. 2. Energy from atomic nuclei.
  2. 5. Energy of motion.
  3. 7. Energy associated with the temperature of an object.
  4. 9. Source of energy that is replenished naturally and can be used indefinitely.
  5. 11. Energy from the sun.
  6. 12. Stored energy based on an object's position or condition.
  7. 13. Measure of how effectively input energy is converted into useful output energy.
  8. 16. Source of energy that is finite and cannot be replaced on a human timescale.
  9. 17. Energy from moving air.
  10. 19. Form of energy produced by the flow of electric charge.
  11. 20. Process of converting energy from one form to another.
Down
  1. 1. Unit of energy commonly used to measure food energy.
  2. 3. Wise use and protection of natural resources, including energy.
  3. 4. Organic material that can be used as a source of energy.
  4. 6. Unit of power, representing energy consumption or production over time.
  5. 8. Measure of the disorder or randomness in a system.
  6. 10. Energy from the Earth's heat.
  7. 14. Natural fuel formed from the remains of living organisms.
  8. 15. Capacity to do work or produce heat.
  9. 18. Energy from flowing water.