Breaking a Magnet

Concept Overview:

Breaking a magnet creates 2 magnets, not 2 disconnected poles

Lecturer Procedure

Step(s) to Follow

Break magnet into 2 pieces

Expected Result

Each piece will act as its own magnet (with 2 poles)

Alternate Procedure

Step(s) to Follow

1. Magnetize 1 end of the knitting needle by rubbing it against 1 pole of the electromagnet.
2. Magnetize the other end of the knitting needle by rubbing it against the other pole of the electromagnet.
3. Demonstrate the magnetic properties of the knitting needle using the compass needle and/or iron filings.
4. Cut the knitting needle in half with the cutting pliers.
5. Repeat step 3 with each piece

Expected Result

Each piece will act as its own magnet, with a north and south pole.