Across
- 3. Strong temporary magnet made by inserting an iron core into a wire coil and passing an electric current through the coil.
- 4. the substance through which it travels, transferring energy
- 7. A device that contains a rotating electromagnet that changes electrical energy to mechanical energy.
- 12. The opposition to the flow of electrons through a conductor; measured in ohms.
- 13. A device that uses electromagnetic induction to induce electrical current by rotating loops of wire through a magnetic field.
- 15. a force that affects subatomic particles and other objects that contain electrical charge
- 17. a wave that is an oscillation of matter and is responsible for the transfer of energy through a medium.
- 19. a coil of wire with a current that acts a bar magnet.
Down
- 1. a force produced when magnetic poles interact.
- 2. the flow of electricity in an electronic circuit, and to the amount of electricity flowing through a circuit
- 5. the relationship between electricity and magnetism.energy from one object to another; for example, thermal energy flowing as heat from a heated stove to a skillet.
- 6. An electrical circuit where the current has only one path. If the path is interrupted in any point, it stops current flow in the entire circuit.
- 8. A device that can increase or decrease the voltage of an alternating current.
- 9. The two ends of a piece of magnetic material where the magnetic forces are strongest, labeled north pole and south pole.
- 10. The region around a magnet where magnetic forces act. magnetic field.
- 11. A material that allows electrons to move easily through it.
- 14. An electrical circuit where the current flows through more than one path. If one path is interrupted, current will still flow through the other paths.
- 16. A property of some materials in which there is a force of repulsion or attraction between certain like and unlike poles.
- 18. A material that does not allow heat or electrons to move through it easily.