Across
- 1. current that always flows in one direction through a wire
- 6. naturally magnetic mineral
- 10. the attractive or repulsive force between electric charges and magnets.
- 12. a single wire wrapped into a cylindrical wire coil.
- 13. space surrounding a magnet, exerts a force
- 14. groups of atoms with aligned magnetic poles
Down
- 2. a device that increases or decreases the voltage of an alternating current.
- 3. a large wheel that that rotates when pushed by water, wind, or steam
- 4. device that uses electromagnets to measure electric current
- 5. device that uses electromagnetic induction to transform mechanical energy into electrical energy
- 7. current that reverses direction in a regular pattern
- 8. a temporary magnet created when there is current in a wire coil
- 9. place where a magnet is strongest
- 11. a device that changes electrical energy into mechanical energy