Magnetism

• What is a magnetic field?

  The area around a magnet where forces are felt
• How do the magnetic field lines differ between unlike pole attraction and like pole repulsion?

  • In unlike pole attraction, the magnetic field lines go directly between the north and south poles
  • In like pole repulsion, the magnetic field lines curve outwards away from the like poles
• How does the magnetic field strength vary across the image?

  • The magnetic field strength is strongest near the north and south poles
  • The field strength decreases with distance from the poles
  • The field lines are more dense near the poles, indicating higher field strength
• What does a strong magnetic field indicate about the force experienced?

  Greater force experienced
• How does unlike pole attraction work in magnets?

  • The north pole of one magnet is attracted to the south pole of another magnet
  • This creates a strong attractive force between the magnets
• What indicates the strength of a magnetic field?

  Density of magnetic field lines
• How does like pole repulsion work in magnets?

  • The north pole of one magnet is repelled by the north pole of another magnet
  • The south pole of one magnet is repelled by the south pole of another magnet
  • This creates a strong repulsive force between the magnets