A diagram showing a circular pattern that a magnetic field creates around a magnet.

• The magnet is labeled North and South.
• A magnetic field, which is strongest near a magnet’s poles, will either attract or repel another magnet that enters the field.
• The field lines begin near the magnet’s north pole and extend toward its south pole.
• Where lines are close together, the magnetic field is strong.
• Where lines are more spread out, the magnetic field is weak.