A question about scenes

I know that having a lot of widgets in my scene that are updating information will drain the battery faster, but what about inactive scenes? Do those widgets update? In other words, I pretty much use a single scene all the time but I recently created one for travelling, and it has a lot of things on there like flight updates and stuff like that. I assume that if the scene is not active the widgets aren't working, but I am just looking to see if anyone knows that for sure.

 

Thanks. That is what I figured, just wanted to be sure.