Permanent and Induced Magnets

• What are the two ends of a bar magnet called?

  North and South poles. The magnetic forces are strongest at the poles of a magnet.
• What happens when we bring two magnets close together?

  They exert a force on one another. Two like poles repel each other (force of repulsion). Two unlike poles attract each other (force of attraction). These are non-contact forces.
• What does a permanent magnet do?

  Produces its own magnetic field, for example, a bar magnet. If we bring a permanent magnet close to another one then they can attract or repel each other depending on the direction.
• What does an induced magnet do?

  It becomes a magnet when it is placed in a magnetic field. Induced magnetism always caused a force of attraction. If the magnetic field is lost the induced magnets lose their magnetism quickly.