permanent & induced magnets

• 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 the 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 close 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 their orientation
• What is an induced magnet?


  An object that becomes a magnet when placed in a magnetic field
• What happens to objects placed near 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 two types of magnets discussed in the video?

  • Permanent magnets
  • Induced magnets
• What are the characteristics of permanent and induced magnets?


  Permanent magnets:

  • Produce their own magnetic field
  • Example: bar magnet

  
  

  Induced magnets:

  • Become magnets in a magnetic field
  • Lose magnetism when the field is removed