B/c Roller Coasters worr by winching you up the first "hill", then you're dropped, and "coast" the rest of the way. Just like any other time you ride down a hill w/o putting any more effort in.
Gravity
Gravity...
gravity
For fun and zero gravity
The simplist answer is gravity, with the cars being guided by rails
No, they travel with gravity after their travel up a lift hill or after a launch.
Actually, you can breath on roller coasters.
As the coaster gets higher in the air, gravity can pull it down a greater distance. YoAnswer this question…
The noun 'roller coaster' has no standard collective noun since most roller coasters are not in a group. However, a collective noun is an informal part of language. Any noun the fits the situation can function as a collective noun; for example, a scream of roller coasters, a maze of roller coasters, a park of roller coasters, a tour of roller coasters, etc.
Roller Coasters are generally moved up the initial hill by electric motors, then dropped, when they are powered completely by gravity. Others use electromagnets to accelerate without gaining initial height.
There are SO many roller coasters at Six Flags. You need to be more specific, but I can tell you the names of the roller coasters I went on when I was there.
Yes, there are roller coasters at Wisconsin Dells.