8th grade ENERGY

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Across
  1. 2. this energy comes from the sun and travels through space as 7 different types of wavelengths
  2. 3. a nuclear reaction where atoms are split is called this- happened in a nuclear power plant
  3. 8. the ___ ____ energy of a book is equal to the height of the book on a shelf and its mass
  4. 9. this unit is also equal to a Nxm2s2
  5. 10. a Joule is also equal to the unit of a Newton multiplied by this
  6. 11. in a machine, energy transfer is not efficient or 100% transferred because a lot of it is lost as this type of energy due to friction
  7. 14. a compressed spring has this type of energy
  8. 17. this law states that energy cannot be created nor destroyed- it just changes forms
  9. 20. when energy is calculated these units are used
  10. 21. a nuclear reaction where atoms combine and release energy is called this—happens in the sun
  11. 22. the energy of motion
  12. 23. unlike kinetic energy, potential energy is ___
  13. 24. the electromagnetic energy wave coming from the sun with the MOST energy is this type of wave
  14. 25. a child and an adult moving at the same speed do not have the same kinetic energy, because the adult has more ___
Down
  1. 1. what type of energy does a spinning windmill have
  2. 4. this energy is found in the nucleus of an atom
  3. 5. stored energy
  4. 6. the rate at which energy is transferred is called this
  5. 7. mechanical energy is associated with the ___ and motion of an object
  6. 12. the ability to do work or cause change is this
  7. 13. a spring that is NOT compressed has this much elastic potential energy
  8. 15. the change from one form of energy to another is called energy _____
  9. 16. to see the greatest change in kinetic energy, you should increase this
  10. 18. food is a type of this energy
  11. 19. the energy of moving charged particles is this