Final answer:
Two objects attract each other if they have opposite charges or opposite magnetic poles. They will repel if they have the same charge or the same magnetic pole.
Step-by-step explanation:
When observing two isolated objects that are attracting each other, there are a few possibilities you should consider. Magnetism and electric charge are the principles at play in such scenarios.
For the first potential situation, if the objects have opposite charges, they will attract each other. This follows the basic principle of electrostatic attraction, where positive and negative charges draw towards one another. For the second situation, objects with the same charge will repel each other, so this possibility is incorrect given the context of attraction.
In the case of magnetism, if the objects have opposite magnetic poles, they will also attract. Like charges in electrostatics, opposing magnetic poles (north and south) have an attraction to each other. Conversely, if the objects have the same magnetic pole, they will repel each other, much like objects with the same electrical charge.