Magnetic Fields

• What surrounds a magnet and exerts force on another magnet?

  Magnetic fields
• What is the term for the area around a magnet where a force acts on another magnet?

  Magnetic field
• What materials are considered magnetic materials?

  Iron, steel, cobalt, and nickel
• How does the force between a magnet and a magnetic material behave?

  It is always one of attraction
• What does the strength of a magnetic field depend on?

  The distance from the magnet
• Where is the magnetic field strongest around a magnet?

  At the poles of the magnet
• What does the direction of the magnetic field at any point indicate?

  The direction of the force acting on another magnet
• How is the direction of a magnetic field line determined?

  By the direction of the force acting on another magnet
• What does the magnetic field line direction indicate when seeking the north pole of a magnet?

  It points from north to south
• What color represents the field lines of a bar magnet in diagrams?

  Blue
• What do magnetic compass needles indicate in relation to magnetic fields?

  The direction of the magnetic field
• What is the significance of magnetic field lines in understanding magnetism?

  • Show the direction of the magnetic field
  • Indicate the strength of the magnetic field
  • Help visualize the magnetic field around magnets
• What are the characteristics of magnetic fields around magnets?

  • Surround magnets and exert forces
  • Strongest at the poles
  • Direction determined by the force on another magnet