Chapters 19-21

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Across
  1. 2. No charge
  2. 4. A device that permits current to flow through it in only one direction.
  3. 8. positively and negatively charged atoms
  4. 9. A device used to measure voltage, or electrical potential energy difference
  5. 11. Law E=2.3110⁻¹⁹ JNm (Q₁Q₂/r), E = energy, Q = numeric ion charges, r = distance between centers
  6. 13. charge (-)
  7. 14. An electrical device used to store electrical charge.
  8. 15. A device used to measure current in a circuit
  9. 16. by induction Charging an object without direct contact between the object and a charge
  10. 17. force the rate at which energy is drawn from a source that produces a flow of electricity in a circuit
  11. 18. A material's opposition to the flow of electric current.
  12. 22. SI unit of charge
  13. 24. A device that converts chemical energy to electrical energy
  14. 25. quantization the fact that electric charge comes in amounts that are always integer multiples of e
Down
  1. 1. charge (+)
  2. 3. An electrical device that resists the flow of electrical current
  3. 5. A device used to measure resistance
  4. 6. circuit A circuit in which all parts are connected end to end to provide a single path of current.
  5. 7. A substance that can conduct electricity under some conditions
  6. 10. A material that does not allow heat or electrons to move through it easily.
  7. 11. A material that allows heat and electricity to pass through it.
  8. 12. circuit a circuit in which each object is connected to the cell separately
  9. 14. Charge per unit p.d. that can be stored on a capacitor. C= Q/V
  10. 19. current The continuous flow of electric charges through a material
  11. 20. circuit a complete, unbroken path through which electric charges can flow
  12. 21. The unit of electrical potential energy
  13. 23. Law The relationship of voltage, current, and resistance