Question

drag the missing word into place
like poles of a magnet each other; you can’t get them
to touch each other!
force
attract
repel

Explanation:

In magnetism, like poles (e.g., north - north or south - south) of a magnet exert a force that pushes them apart, which is called repulsion. "Attract" is for opposite poles, and "force" is a general term, not specific to the interaction of like poles here. So the correct word is "repel".

Answer:

repel