sceince test
Across
- 3. - Interaction of electric currents or fields with magnetic fields.
- 6. Device converting mechanical energy into electrical energy.
- 8. - Region around a magnet where magnetic forces act.
- 10. - Force produced when magnetic poles interact.
- 11. - Area around an electron exerting force on nearby charged objects.
- 12. Strong temporary magnet made by inserting an iron core into a wire coil and passing an electric current through the coil.
- 16. - the rate of flow of electrons in a conductor
- 18. - Substance impeding heat or sound passage.
Down
- 1. Device converting electrical energy to mechanical energy with a rotating electromagnet.
- 2. - Ends of a magnetic material with strongest forces, north and south poles.
- 4. - Circuit with multiple paths for current flow.
- 5. - Electrical potential variance measured in volts.
- 7. characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons
- 9. - Coil of wire acting as a bar magnet.
- 13. - Material allowing easy electron movement.
- 14. Device altering alternating current voltage.
- 15. - Circuit with all elements in a single path.
- 17. - Opposition to electron flow in a conductor.