Energy and its Uses & Energy Transfer Through Waves

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Across
  1. 3. SI unit of frequency
  2. 4. an example of chemical potential energy
  3. 5. When a stretched spring is allowed to return its original length, its energy will be _______.
  4. 10. waves used in global positioning systems
  5. 12. distance between two successive crests of a wave
  6. 13. power is ______ of energy conversion
  7. 15. no transfer of energy occurs when there is no temperature ______.
  8. 16. waves used in remote control units
  9. 20. This type of energy is gained after a flag is raised.
  10. 21. oil and natural gas are examples of _______ fuels
  11. 22. Energy can only be _________ from one object to another.
  12. 24. waves transfer energy through _________
  13. 26. wind and solar energy are examples of ________ sources of energy
Down
  1. 1. sound waves move in a direction _______ to its direction of vibration
  2. 2. SI unit of energy
  3. 6. an important source of thermal energy
  4. 7. Energy cannot be created or __________.
  5. 8. the capacity to do work
  6. 9. energy that is stored
  7. 11. light waves move in a direction _______ to its direction of vibration
  8. 14. waves used in mobile phones
  9. 17. This type of potential energy is stored in a stretched bow
  10. 18. waves used to sterilise medical equipment
  11. 19. Principle of _________ of Energy
  12. 23. energy which a moving object has
  13. 25. SI unit of power