End of year Crossword

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Across
  1. 1. Energy stored when two charges are moved close together
  2. 3. When an object is exposed to and touches a radioactive material
  3. 6. Something is done to transfer energy
  4. 8. Man responsible for demonstrating the atom has a nucleus
  5. 12. Component that lets current flow in one direction
  6. 14. Rate of energy transfer
  7. 16. Component whose resistance decreases as temperature increases
  8. 18. First sub atomic particle discovered
  9. 19. Radiation that is most ionising
Down
  1. 2. Energy cannot be created of destroyed, it is…
  2. 4. Material needed to absorb beta radiation
  3. 5. How particles in a solid move
  4. 7. Rate of flow of charge
  5. 9. Energy store linked to speed
  6. 10. Transforming from a solid to a liquid
  7. 11. Object used to measure the density of an irregular object is a ______ Beaker
  8. 13. Current and Voltage of an ohmic conductor are ________ Proportional
  9. 14. Energy store that changes when a substance changes state
  10. 15. Mass per unit volume
  11. 17. Colour of the live wire in a plug