Tiger's Magnets

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Author:
Anonymous
ID:
75602
Filename:
Tiger's Magnets
Updated:
2011-03-28 06:32:31
Tags:
Tiger Woods
Folders:

Description:
Magnatism
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  1. Magnetic force is exerted through a _____________.
    Magnetic Field
  2. A piece of magnetite is _________.
    Magnetic
  3. Magnets attract objects made from _______ and ______.
    Iron and Steel
  4. ______ poles reject.
    same
  5. _______ poles attract.
    Opposite
  6. Magnetic field lines begin at the _______ pole and ends at the _______ pole.
    North;South
  7. The Earth's Core is made from ______ and ______.
    Iron and Steel
  8. What is a magnetic domain?
    Group of atoms whose fields point in the same direction.
  9. A natural magnet is a loadstone rock true or false?
    True
  10. The compass needle points to the east?
    True or False
    False
  11. A current carrying a wire wrapped around a iron core is called an ___________.
    Electromagnet
  12. The magnetic field of an _______magnet is turned on or off when the electric current is turned on or off.
    Electromagnet
  13. Any device that converts electric energy into kinetic energy is a _______.
    Motor
  14. Light displays that occurs when charged particles trapped in the magnetosphere collide with Earths's atmosphere above the poles.
    Aurora
  15. Uses a magnetic field to turn motion into electricity.
    Generator
  16. Electric current that changes itsdirection repeatedly.
    Alternating Current (AC)
  17. in a ________ _______ electrons flow in one direction.
    Direct current
  18. Electric energy produce almost all of the electric energy used all over the world.
    True or False?
    True
  19. A divice that changes the voltage of an alternating currenty with little loss of energy.
    Transformer
  20. A loadstone is one of natures natural Magnets. True or False?
    True

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