Bright Spark

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Across
  1. 2. found at the centre of an atom
  2. 4. a negatively charged particle
  3. 5. a battery which cannot be re-charged
  4. 8. a battery which can be recharged
  5. 9. a circuit with only one path
  6. 11. a circuit with more than one path
  7. 13. when two like charges are close to each other
  8. 14. a good conductor of electricity
  9. 16. a type of energy
  10. 17. when two unlike charges are close to each other
  11. 18. units of resistance
  12. 19. instrument used to measure voltage
  13. 20. a flow of electrons
Down
  1. 1. two or more cells connected together
  2. 3. a material which allows electrons to pass through it
  3. 6. units of current
  4. 7. a poor conductor of electricity
  5. 10. supplies electrical energy
  6. 12. opposition to the flow of electrons
  7. 15. units of voltage
  8. 17. instrument used to measure current
  9. 19. a measure of the energy supplied by the battery