Explain the properties of magnets.

Magnets are interesting things. Their most noticeable property is that they are attracted to certain metals. The metals to which magnets are most strongly attracted are described as ferromagnetic. Iron, nickel, cobalt, and neodymium are ferromagnetic. These substances can be made into permanent magnets.
While magnets always attract ferromagnetic materials, they sometimes attract and sometimes repel other magnets. Attraction or repulsion occur depending on the orientation of both magnets. Magnets have two distinct ends, known as the north and south poles. The north pole of one magnet will attract the south pole of a second magnet, but the north poles of two magnets repel one another, and the south poles of two magnets also repel.
When a magnet is cut or broken into two pieces, each piece will have a north and a south pole. It is not possible to separate the poles of a magnet.
A magnet’s ability to attract or repel objects in the region near it is referred to as its magnetic field. The magnetic field is often represented by a series of lines originating at the north pole and curving through space to the south pole. These magnetic field lines represent the force on a north pole of a magnet at any point in space. It is possible to visualize the field lines of a magnet by placing a sheet of paper immediately above it and shaking some iron filings onto the paper. With a little gentle shaking, the iron filings orient themselves so as to line up with the magnetic field lines, allowing us to “see” the magnetic field. This occurs because the filings are themselves tiny magnets. Their south poles are attracted to the north pole of the larger magnet, and their north poles are attracted to the south pole of the larger magnet, with repulsive forces between the like poles. The small, lightweight filings orient themselves to maximize attraction and minimize repulsion. In other words, they rotate into place parallel to the magnetic field lines.
This illustrates another property of magnets: in a magnetic field, they orient themselves parallel to the field lines. A familiar instance of this is when a compass is placed on a level surface, it swings around to point to magnetic north. Magnetic North is actually the south pole of the Earth’s magnetic field, and the north end of an earth magnet is attracted to it.
At the microscopic level, ferromagnetic materials are said to be made up of “domains," small regions that have their own north and south poles. These are oriented in random directions, so the forces exerted by a nearby magnetic field are canceled out by the differently oriented domains. Such a ferromagnetic material can be magnetized or turned into a permanent magnet by application of strong magnetic force, which causes the domains to align themselves all in the same direction. Then the effects of all of the domains are added together, and the substance acts like, and is, a permanent magnet.

One last property: a charged particle moving through the field associated with a magnet will experience a force and will be deflected from its course. This principle is used to steer particles in cyclotrons.
As you can see, there are a lot of properties of magnets. I suggest you take a look at your notes to find out which properties your instructor has mentioned during class.
The image linked below shows the magnetic field lines of two magnets arranged so that they repel.
https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcTgzk4wm4hnoObb733JuAx5Y_DbEFmpiRMs37mD2T9ofa8aFHlz