In science class we about roller coasters and how they work. The main reason they work is based off of Newton's three law's. The First Law is also called the Law of Interia. The First Law says that a object will stay at rest or in motion unless acted on by another force. It is also called the Law of Inertia because interia means the same as law 1. Law 2 says that acceleration of an object depends on how much it weighs and the size of it. I f the net forces increase the acceleration increases. Law 3 When a force acts on the object the object exerts the same amount of force in the opposite direction. You need momentum to stop the object.
Then after we learned everything about roller coasters we had a project about roller coaster where one person was a Lawyer, one was Physicist, one person as Historian, and one as Design Engineer. The Lawyer had to research laws about roller coasters in all states and around the world, and their restrictions. The Historian told about the history of roller coasters, the fastest, longest, and the oldest and anything to do with that. Design Engineer sees what you can use to make a roller coaster, how it works, and how it starts the roller coaster. Now the Physicist which was my job so i'll give you more info on it. The Physicist figures out all the information on how it works, what most are made of, what forces and energys come into play and how they test them. I learned that there are to main things of roller coaster needed are to energys Potential and Kinetic. Potential energy is the energy needed to get the roller coaster up hills and around yhe loops. Kinetic energy is the speed of the roller coaster going down hills and coming down in the loop. With out these energys roller coasters would not work.
The image below is my roller coaster attempt where it did not work. From the begging it was going fast after the first loop it was finishing but as it kept going it was going to fast and then went past the end. We did the roller coaster on The Jason Project Roller Coaster.
Finally our team got one to work. It was going to slow from the hill so we made it bigger. than it was to fast. Than we added another hill to slow it down. it was still to fast so we added a loop at the end and another hill. Than it worked and we couldn't think of a name, but than we found a pencil and wanted to call it ''The Pencil'' but thought it was too boring and called it the "The Sharp Pencil".