Permanent and Induced Magnets

• What should you be able to describe by the end of the video?

  Forces produced when magnets are brought together and the difference between permanent and induced magnets.
• What are the two ends of a bar magnet called?

  • North Pole
  • South Pole
• Where are the magnetic forces strongest on a magnet?

  At the poles of a magnet.
• What happens when two like poles of magnets are brought close together?

  • They repel each other.
• What happens when two unlike poles of magnets are brought close together?

  • They attract each other.
• What type of forces are the attraction and repulsion between two magnetic poles?

  Non-contact forces.
• What is a permanent magnet?

  • A magnet that produces its own magnetic field.
• What occurs when a permanent magnet is brought close to another permanent magnet?

  They can attract or repel each other.
• What is an induced magnet?

  • An object that becomes a magnet when placed in a magnetic field.
• What happens to objects when a permanent magnet is placed between them?

  They become induced magnets.
• What is a key fact about induced magnetism?

  It always causes a force of attraction.
• What happens to induced magnets when the permanent magnet is removed?

  They lose most or all of their magnetism quickly.