Work Energy Power and Efficeincy IGCSE

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Across
  1. 4. gravitational potential energy
  2. 6. the rate of energy transfer per unit time
  3. 7. is equal to the 2 x KE divided by velocity x velocity
  4. 10. a percentage value of how much useful work has been done
  5. 11. the name of the SI unit for Power
  6. 13. .......force is equal to energy divided by mass x distance
  7. 16. the name of the SI unit for energy
Down
  1. 1. another word of air friction
  2. 2. power divided by force
  3. 3. energy associated with moving objects
  4. 5. as a results of surfaces making contact with each other
  5. 8. a quantity that only has magnitude
  6. 9. ...... energy is the sum of potential and kinetic energy
  7. 12. physical quantity that has magnitude and direction
  8. 14. joules divided by watts
  9. 15. Force mutiplied by distance