4.1.2 magnetic fields

• the strength of the magnetic field depends on the distance from the magnet. the magnet is strongest at the magnet's poles
• every magnet creates a magnetic field around itself. a magnetic field is the area around a magnet where another magnet or magnetic material feels a force
• • A magnetic compass contains a small bar magnet. The needle of the compass points in the direction of the Earth’s magnetic field. This shows that the Earth’s core is magnetic.
  • The arrows on magnetic field lines show the direction of a magnetic field. The arrows always point from the north pole of the magnet to the south pole.
  • The strength of the magnetic field at any point is indicated by the density of the field lines at that point.