I found this website awhile back and can’t believe I forgot to share it!
Roller Coaster Physics
The Roller Coaster activity is a lot of fun. I used this first with some of my peers in Graduate School and they loved it :o)
The gist of the activity is your students (or your whole class) choose from different selections for the different parts of the roller coaster: hills, drops, loops, etc.
Try it out!