Oh yeah, the word "scoop" is used to refer to a collector for asteroid mining, though the manual also refers to "fuel collectors" that are intended to be Bussard ramscoops.

The physics are non-relativistic; correct. I have a section in my dev notes labeled "crimes against science" where I list out all the places I can think of that the game diverges from realism, (and avoid adding to the list) but I hadn't considered that yet since all the interstellar travel in the game happens through artificial wormholes: https://gitlab.com/technomancy/bussard/blob/master/spoilers/... (edit: spoiler warning for the link)