Physics quiz

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Across
  1. 1. One joule per second
  2. 4. comes in sunflower and Oliver and crude
  3. 5. Not sea current
  4. 8. what the sun gives off
  5. 9. A type of flask
  6. 10. Measured in joules
Down
  1. 2. changes the voltage
  2. 3. Example of which are coal and petrol
  3. 6. A dam good way to make electricity
  4. 7. Keeps a roller coaster going