• A diagram that show how magnetic fields of two magnets interact.
• Figure 3A is a diagram of two magnets, with both poles labeled on each.The North poles of each are facing each other.There are no iron filings in the middle which indicates that this magnetic field is weak.
• Figure 3B shows two magnets both facing each other at their North poles.This creates a very strong magnetic field as shown by the iron filings in the middle being pulled apart.