Electricity and Magnetism

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Across
  1. 1. A measure of how much a material resists the flow of electric current.
  2. 4. An instrument used to measure electric current.
  3. 6. The electrical "push" that causes current to flow.
  4. 7. A complete path through which electric current can flow.
  5. 9. A device that uses electricity and magnetism to produce movement.
  6. 11. A safety device designed to break a circuit if the current becomes too high.
  7. 14. A safety device that switches off electricity when it detects an imbalance in the current, helping to prevent electric shock.
  8. 16. A device used to change the resistance in a circuit and therefore control the current.
  9. 19. A circuit in which components are connected one after another in a single path.
  10. 21. A negatively charged particle that can move through metals.
  11. 24. A material that allows electric charges to move easily and can carry a large current.
  12. 25. The region around a magnet or electric current where magnetic forces act.
Down
  1. 2. The production of an electric current or voltage by changing a magnetic field.
  2. 3. The relationship between electricity and magnetism, including the production of magnetic fields by electric currents.
  3. 5. One of the two ends of a magnet, called the north and south poles.
  4. 8. A material that does not allow electric charges to move easily.
  5. 10. energy Energy that can be supplied by sources such as batteries, generators and solar panels.
  6. 12. A safety device that automatically switches off a circuit when the current becomes dangerously high.
  7. 13. A circuit in which components are connected in separate branches.
  8. 15. A property of matter that can be positive or negative; opposite charges attract and like charges repel.
  9. 17. The flow of charged particles, pushed along by a voltage.
  10. 18. A magnet produced by passing an electric current through a coil of wire, often around an iron core.
  11. 20. The flow of charged particles through a material, measured in amperes (A).
  12. 22. A situation where a cable carries more electrical current than it is designed to carry, causing it to become dangerously hot.
  13. 23. An object that produces a magnetic field and has magnetic poles.