The Design and Use of Permanent Magnets and Electromagnets problem 1

Which poles make up a horseshoe magnet? What about a rod magnet?

Both consist of the north and south poles.

Two bar magnets are placed close to each other. Show, using a diagram, how their poles must align so that the magnets repel each other.

If we take the plotting compass in our hands and turn west. Which way does the compass needle point? If we then turn east through the south. Where does the compass needle point in the end?

The compass needle always points in the north-south direction.

A small iron filling is approaching the north pole of a magnet. What happens to the iron filling. What about when we approach the north pole of the magnet with a heavy iron anchor. Does the anchor move?

The iron filling moves towards the magnet. The anchor does not move.