Permanent and Induced Magnetism and fields

Cards (13)

  • At which part of a magnet are the magnetic forces strongest? 
    Poles
  • What happens when two magnets are brought together?
    They exert a force on each other.
  • What type of force is exerted when two like poles of a magnet are brought together?
    A replusive, non-contact force.
  • What type of force is exerted if two unlike poles of a magnet are brought near each other?
    An attractive, non-contact force.  
  • What is the difference between a permanent and induced magnet?
    A permanent magnet produces it's own magnetic field.
    An induced magnet becomes magnetic when placed in a a magnetic field.
  • What type of force does induced magnetism always cause?
    Force of attraction.
  • What happens when an induced magnet is removed from a magnetic field?
    The induced magnet loses all its magnetism
  • What is a magent field?
    The region surrounding a magnet where another magnet or magnetic material experiences a non-contact force.
  • Give examples of magnetic materials.
    Iron
    Steel
    Cobalt
    Nickel 
  • What can always be said about the force between a magnet and a magnetic material? 
    It is always attractive.
  • How does the strength of a material field alter as you move further away from the magnet producing it?   
    The magnetic field strength decreases the further you move away. 
  • In what direction does a magnetic field point?
    In the direction that a north pole would experience a force if placed in the field
    From the north seeking pole to the south seeking pole of a magnet.   
  • What does a magnet compass contain?
    A small bar magnet that points in the direction of the Earth's magnetic field.