I'm with Albort. Though I do refer to it as a coasters when I say "I did all the coasters", when I'm using "shorthand".
But it's more like riding in a Jeep over rutted roads and up and down inclines, with someone else driving.
Matterhorn...eh, I think it's fun, but it's not *scary* to me.
Space Mountain is the most roller-coastery of them, IMO, but still I laughed my head off while riding it, it was just so fun!
None of the coasters there are like something I used to ride when living in CA, at Great America, where there are loops and wild things like that. They are all fairly tame. Ooh, wait, better say I've never been to DCA, so I can't speak for those.