physics crossword 19

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Across
  1. 2. unit for strength of a magnetic field
  2. 3. magnetic materials (ex: iron, Fe) have ___ electrons
  3. 5. permanent magnets made out of iron
  4. 7. a physical phenomenon produced by the motion of electric charge
  5. 8. most materials have __ electrons (not magnetic)
  6. 11. local magnetic regions
  7. 12. natural magnet made from iron core
  8. 15. type of electromagnet formed by a helical coil of wire whose length is substantially greater than its diameter, which generates a controlled magnetic field.
  9. 16. the movement of electrons through a wire
  10. 17. the direction of a B field goes out of the ____ pole
  11. 18. if you split __ into two, you get 4 poles
  12. 19. magnetic field is a __ quantity
Down
  1. 1. the area around a magnet in which there is magnetic force
  2. 4. method of using one’s right hand to determine the direction of magnetic force and current
  3. 6. “make motion” by converting electrical energy to mechanical energy
  4. 8. The magnetic force on a current carrying wire sitting in a magnetic field equals zero when the wire is lying __ to the field
  5. 9. separate ionized (charged) isotopes or molecular fragments of an unknown compound.
  6. 10. a force that counteracts the flow of current
  7. 13. naturally magnetized piece of the mineral magnetite
  8. 14. the direction of a B field goes into the ____ pole