Electricity is :l - Alvaro Herrera

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Across
  1. 4. When electrons in the outermost ring of an atom can move easily from one atom to the next in a material
  2. 5. is also called Potential difference
  3. 7. periodically reverses direction
  4. 10. refers to the possibility of doing work.
  5. 11. flows in only one direction
  6. 12. The maximum number of electrons in the outermost ring is always
  7. 14. is the direction of current
Down
  1. 1. how are Electrons are distributed around the nucleus
  2. 2. is considered as the motion of positive charges
  3. 3. when electrons in the outermost ring of an atom do not move about easily
  4. 6. is necessary to produce current flow
  5. 8. is the opposition to the flow of current
  6. 9. are materials that are neither good conductors nor good insulators
  7. 11. is a device used to measure the voltage, current, or resistance in a circuit
  8. 13. is the unit of potential difference