Question

drag the missing word into place
a magnet has a magnetic field,
a north and a south , you know the deal.
force pole repel

Explanation:

A magnet has a north pole and a south pole, which is a fundamental property of magnets. The other options, "force" and "repel", do not fit the context here as "force" is a general term and "repel" describes an interaction, while "pole" specifically refers to the north and south ends of a magnet.

Answer:

pole