permanent & induced magnets

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

  The forces produced when magnets are brought together
• What is the difference between permanent and induced magnets?

  A permanent magnet produces its own magnetic field, while an induced magnet becomes a magnet in a magnetic field
• What are the two ends of a bar magnet called?

  North Pole and 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 occurs when unlike poles of magnets are brought together?

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

  Non-contact forces
• What does a permanent magnet produce?

  Its own magnetic field
• What happens when a permanent magnet is brought close to another permanent magnet?

  They can attract or repel each other depending on the direction
• What is an induced magnet?

  An object that becomes a magnet when placed in a magnetic field
• What happens to objects placed in a magnetic field created by a permanent magnet?

  They can become induced magnets
• What is the 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
• What are the key concepts related to permanent and induced magnets?

  • Permanent magnets produce their own magnetic field.
  • Induced magnets become magnets in a magnetic field.
  • Induced magnetism always causes attraction.
  • Induced magnets lose magnetism when the magnetic field is removed.
• What are the interactions between magnetic poles?

  • Like poles repel each other.
  • Unlike poles attract each other.
  • Both interactions are examples of non-contact forces.