Okay so, if you don't know what these terms mean, here's the meaning before you begin reading:
SW: Secret Weapon, the code-name given to the park's next big roller coaster
Airtime: When your lower-half temporarily leaves the seat
G-Forces: Gravitational-Force abbreviated, a force that pulls or pushes on the riders of that roller coaster
Coaster: Basically just Roller Coaster shortened
Woodie: A nickname given to any wooden Roller Coaster
Also this playlist by Expedition Theme Park goes into a lot more detail as I do because I wrote the drafts for this book on paper I tore out of my science homework book in school because I was bored:
https://www.youtube.com/watchv=tTSm8kmgd8o&list=PLsCgdeyVqY0K1k4K8SXoqNkZYf7hl9_dE