Dropping it on a hard surface
The not magnetized rod will be attracted by both of the magnetized rods.
Rapidly rub the iron with the steel magnet for approximately 2 minutes for every pound of iron. Repeat on all sides of the piece of iron. Repeat process as needed until demagnetized.
Iron is naturally magnetized.
It will stick to either pole, providede that the iron is not magnetized and that it is not above the Curie temperature (the temperature above which iron can no longer be magnetized, named after Marie and Pierre Curie).
iron
iron
IRON OXIDE
No. Only a hand-full of metals can be magnetized, for example iron, nickel and cobalt.
Iron is magnetic because of polar molecular alignment.
Iron
Unless one or both iron nails are magnetized, then nothing will happen. If one nail is magnetized, then the other nail will be attracted to the magnetized nail.
A non-magnetized piece of iron would capture the magnetic particles.