How may a bar of steel be magnetized?
A bar of steel, when rubbed on a natural magnet, becomes magnetized.
When the bar of steel is bent in the shape of a horse-shoe, what is it called?
It is then called a horse-shoe magnet, from its shape.
Where does a magnetic bar always point, when it is made to move easily on a pivot?
One end of it always points to the north, and the other end to the south.
What are the ends of the magnet called?
The north end is called the positive, and the south end is called the negative.
What is there curious about the magnet?
The positive end of one magnet always attracts the negative end of every other magnet; but if the two positive or the two negative ends are brought together, they will repel each other.