How A Rollercoaster Works
Gravity
Gravity is a big part in making a roller coaster move. As you go down Gravity pulls you.
What makes it move
When a roller coaster goes up it builds potential energy. As it goes down it turns into kinetic energy. On its way down it releases the kinetic energy.
Brakes/stopping
Most roller coasters use air to stop and other one use magnets
Decoration
Roller coaster are decorated to attract people to ride them.
Foundation
Most roller coasters are steel because they are safer. To build a roller coaster you have to have a very sturdy area to put the supports. Steel roller coasters are smoother than wood roller coasters.