Clue 2 - The Weapon

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Across
  1. 2. The scientist who founded 3 laws of motion
  2. 5. The flow of charge around a circuit
  3. 6. The least ionising radiation
  4. 7. The energy store of temperature and heat
  5. 9. The energy store of movement
Down
  1. 1. The overall force on a system
  2. 3. The base unit of mass
  3. 4. A resistive force that acts in the opposite direction to any motion
  4. 8. The green and yellow wire in a plug