Physics recap

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Across
  1. 3. this energy store is useful in a speaker but wasted in a fan
  2. 6. if you calculate the efficiency as a decimal you can multiply this answer by 100 to get the...
  3. 8. this store of energy is linked to movement
  4. 10. this store of energy is linked to height
Down
  1. 1. this is calculated when you divide the useful energy by the total energy
  2. 2. this is the unit for energy - it has the symbol J
  3. 4. this store of energy is in food, fuel or batteries
  4. 5. energy is usually wasted as _ _ _ _
  5. 7. this store of energy is given off by the Sun, a Tv and a torch
  6. 9. this type of diagram looks like a large arrow and shows how an appliance uses and wastes energy
  7. 11. if you added up the useful and wasted energy it would equal the _ _ _ _ _ energy