GEOLOGY

Detailed explanation-1: -If the bar magnet is moved farther from the electromagnet the potential energy will not change. If the bar magnet is moved closer to the electromagnet the potential energy will increase.

Detailed explanation-2: -When two magnets attract or repel each other potential energy can be stored in their relative positions. For example, two magnets which are repelling each other, when held together have potential energy, in that when they are released they move apart.

Detailed explanation-3: -A south pole of one magnet can approach the north pole of another. The magnetic fields are aligned. This makes an attractive force between the two magnets. The farther apart they are, the higher their potential energy.

Detailed explanation-4: -The force is stronger when magnetic objects are closer together. The force weakens when magnetic objects are farther apart.