science puzzle

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Across
  1. 2. law: the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperatures remain constant.
  2. 4. A material or an object that does not easily allow heat, electricity, light, or sound to pass through it
  3. 5. a unit of measure for electrical current.
  4. 7. diagram: a graphical representation of an electrical circuit
  5. 8. the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body
  6. 9. circuit: one in which all circuit elements are arranged in a single path
  7. 12. a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.
  8. 15. the refusal to accept or comply with something
  9. 16. a conducting wire carrying a constant current of one ampere when the power used between these two points is equal to one watt
  10. 18. the rate at which electrons flow past a point in a complete electrical circuit
  11. 19. a safety device consisting of a strip of wire that melts and breaks an electric circuit if the current exceeds a safe level.
Down
  1. 1. an electromotive force or potential difference expressed in volts
  2. 3. the degree to which a specified material conducts electricity, calculated as the ratio of the current density in the material to the electric field that causes the flow of current
  3. 6. circuit: an electrical path that branches so that the current divides and only part of it flows through any branch.
  4. 7. the materials or substances which allow electricity to flow through them
  5. 10. a device for making and breaking the connection in an electric circuit.
  6. 11. a measure of the resisting power of a specified material to the flow of an electric current.
  7. 13. a roughly circular line, route, or movement that starts and finishes at the same place
  8. 14. a container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power
  9. 17. the SI unit of electrical resistance, expressing the resistance in a circuit transmitting a current of one ampere when subjected to a potential difference of one volt.