GEOLOGY

Detailed explanation-1: -The strength of the magnetic forces of a magnet is strongest at its poles as the magnetic lines of force are the nearest near the poles. The closer the magnetic field lines are, the stronger the magnetic field at that point.

Detailed explanation-2: -It is the magnetic force that attracts and repels. The force is stronger when magnetic objects are closer together. The force weakens when magnetic objects are farther apart. List some examples of how magnets are used in daily life.

Detailed explanation-3: -So if two magnets are pointing with unlike-poles together (north pole to a south pole), then bringing them closer together decreases the energy stored up in the magnetic field. They will be pushed in the direction that decreases the amount of stored-up energy.

Detailed explanation-4: -By adding one magnet on to the other, e.g. stacking, the stacked magnets will work as one bigger magnet and will exert a greater magnetic performance. As more magnets are stacked together, the strength will increase until the length of the stack is equal to the diameter.

Detailed explanation-5: -In magnets like poles repel each other and unlike poles attract each other. So when placing the north pole of two magnets close together they will repel.