IN THIS EXPERIMENT YOU WILL…
Observe the magnetic field lines around a bar magnet with iron filings and with small compasses as well as an effects on various items. Iron, nickel, cobalt and alloys of these metals are known as ferromagnetic substances, because they are strongly attracted by magnets.
Permanent magnets have north and south poles – these poles are dipoles and the one cannot exist without the other. Like poles repel each other and unlike poles attract each other. The magnetic field that surrounds the magnet in three dimensions, is the strongest at the poles of the magnet.