Unit 9

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Across
  1. 3. device that uses electromagnetic induction to induce electrical current by rotating loops of wire through a magnetic field
  2. 5. the opposition to the flow of electrons through a conductor measured in atoms
  3. 8. strong temporary magnet made by increasing an iron core into a wire coil and passing an electric current through a coil
  4. 9. a material that doesn't allow heat/ electrons to move easily through it
  5. 13. a property of some materials in which there is a force of repulsion or attraction between certain like and unlike poles
  6. 14. a flow of electricity in a electric current and the amount of electricity flowing
  7. 16. a metal often used in electric circuits because it is a good conductor of electricity
  8. 17. field the region around a magnet where magnetic forces act
  9. 20. area surrounding a electron that exerts a force on anything nearby with a electric charge
  10. 21. the relationship between electricity and magnetism
  11. 22. a difference in electrical potential, measured in volts with a voltmeter
  12. 24. energy that is in motion
Down
  1. 1. the two ends of a place of magnetic material where the magnetic forces are strongest, labeled N and S poles
  2. 2. device that contains a rotating electromagnet that changes electrical energy to mechanical energy
  3. 4. a force produced when magnetic poles interact
  4. 6. a coil of wire, which when carrying a current acts as a magnet, which generates a controlled magnetic field
  5. 7. a characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons
  6. 10. a type of fan that is moved by steam in a power plant to generate electricity
  7. 11. a electrical circuit where the current flows through more than 1 path.
  8. 12. when opposite charges or poles are close to each other, they do this
  9. 15. a material to move easy through it
  10. 16. a shape of wire that can be used to reinforce a current
  11. 18. a electrical circuit where the current has only one path.
  12. 19. a factory used to produce electricity from burning a fossil fuel or nuclear reaction
  13. 23. a device that can increase or decrease the voltage of an alternating current