Across
- 4. energy that consists of the movement of electrons
- 5. imbalance of electric charges within or on the surface of a material.
- 9. a giant spark of electricity in the atmosphere between clouds, the air, or the ground
- 10. a material in which electric current does not flow freely.
- 11. complete electrical circuit through which current can flow when a voltage is applied.
- 14. two or more paths for current to flow through
- 15. a circuit where the path has been interrupted or "opened" at some point so that current will not flow.
- 17. an electric current that periodically reverses direction and changes
- 19. class of physical attributes that occur through a magnetic field, which allows objects to attract or repel each other
Down
- 1. a flow of charged particles, such as electrons or ions,
- 2. subatomic particle with a charge of negative electricity
- 3. one in which all circuit elements are arranged in a single path
- 6. a measure of the opposition to the flow of current in an electrical circuit
- 7. a device that gives energy to the charged particles constituting the current
- 8. an object or type of material that allows the flow of charge
- 12. derived unit used to measure the electrical resistance of a material or an electrical device
- 13. one-directional flow of electric charge
- 16. electric potential between two points of a conducting wire
- 18. The unit of electric current in the International System of Units
