Across
- 3. providing a path that allows electrical charges to travel directly into the Earth instead of into a building
- 4. discharge, the flow of electricity between two electrically charged objects caused by contact Ex. Lightning
- 5. material that blocks the flow of electrons
- 9. temporary magnet made by placing a piece of iron inside a current carrying coil of wire.
- 11. phenomenon where objects placed in a strong magnetic field become magnetized due to the poles within their atoms aligning (all e- in same direction).
- 13. of Conservation of Charge, charge can never be created or destroyed, it only changes forms.
- 16. material that allows electrons to flow easily
- 17. field, external force given off by a magnet; strongest at the poles.
- 18. device that detects electrical charge on an object
Down
- 1. the tendency of materials to oppose the flow of electrons through it
- 2. difference, the push that causes charge to move
- 6. electricity, the build up of excess electric charge on an object
- 7. the net movement of electric charges in a single direction
- 8. device that uses an electromagnet to convert mechanical energy into electrical energy.
- 10. a material that gives off an external magnetic field, making it possible to apply a force over a distance.
- 12. motor, device that uses an electromagnet to convert electrical energy into mechanical energy.
- 14. property of some materials that allows them to give off an attractive or repulsive force.
- 15. field, exerted by a charged object; allows us to charge by induction
- 19. Law, the current in a circuit equals voltage difference divided by resistance