Across
- 7. a material that does not allow the transfer of electricity easily
- 10. an electric current that regularly reverses direction
- 12. the flow of electrons that creates an electric current
- 14. an electric charge built up on persons or objects through friction
- 16. the route in which an electrical current can flow, beginning and ending at the same point
- 18. an electric spark discharged in the atmosphere
Down
- 1. an electrical current that flows in only one direction
- 2. measures how difficult it is for electricity to pass through an object (labeled as ohm)
- 3. a circuit having one path for the electricity to flow
- 4. in electrons, the absence of flow through with electric current
- 5. the flow of electricity through a cable, wire, or other conductors
- 6. a circuit having more than one path for the electricity to flow, like "branches"
- 8. measures electrical pressure (labeled as volts, or V)
- 9. attraction for iron associated with electric currents
- 11. a subatomic particle with a negative charge
- 13. an electric current providing an uninterrupted, endless path for the flow of the current
- 15. measures electrical current (labeled as ampere, or A)
- 16. a material that allows electricity to flow through it easily
- 17. measures electrical resistance (labeled as Ω)