Ch 8 - Magnetism and Electricity

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Across
  1. 3. any material that has the ability to attract iron
  2. 4. magnetic ______; area of magnetic force around a magnet
  3. 7. ______ electricity occurs when a circuit and a power source allow electrons to move
  4. 9. a circuit that has multiple paths through which electricity can flow
  5. 11. last name; who discovered a weak magnetic field can be produced through a wire
  6. 12. part of a computer that contains the built-in memory and programs
  7. 13. the measurement of power, or how fast work is done
  8. 14. a conductor that can be moved to bridge or not bridge the gap in a circuit
  9. 18. a power source containing one or more electric cells
  10. 19. a measurement of the amount of electrical push, or force, in a circuit
  11. 22. another name for an integrated circuit
  12. 23. the unit that measures how much current electricity flows through a given part of a circuit in one second
  13. 24. last name; discovered adding a metal core to a coil of wire increased the magnetism
  14. 26. a liquid or paste substance that conducts electricity
  15. 28. a circuit that has only one path through which electricity can flow
  16. 29. a material that reduces the flow of electricity
  17. 30. what opposite poles do when brought near each other
  18. 31. a material that can work as a conductor or an insulator
Down
  1. 1. a coil of wire with a core attached to an electrical source
  2. 2. a material that does not allow electricity to flow through it
  3. 5. ______ circuit; a very small circuit with all its components in a single unit
  4. 6. uses a magnet to convert motion into electrical energy
  5. 8. what the same poles do when brought near each other
  6. 10. part of a computer that stores facts momentarily
  7. 14. electrical _____; an electric current that carries information
  8. 15. works as a result of a chemical reaction and the movement of electrons
  9. 16. _______ electricity is produced when charges build up on the surface of an object
  10. 17. integrated circuits are small, ____, and durable
  11. 20. ______ number system; a code used by electronic devices to communicate information
  12. 21. brain of the computer that tells the other parts of the computer what to do
  13. 25. a material that allows electricity to flow through it easily
  14. 27. ____ devices can communicate information