Our class wanted to test and use Newton's Laws of Motion. They are: 1. An object at rest stays at rest unless acted on and an object in motion stays in motion unless acted on. 2. The greater the mass of the object being accelerated, the great the amount of force needed to accelerate the object. 3. For every force there is a reaction force that pushes back in the opposite direction.

                          My group made the "Waffle Napalm". It was made out of wood and steel. You started going up a large hill, dropping down, and then going into a tube. You looped into a shark-tank cave and speed would make you loop and twist, giving you a small sensation of weightlessness. You would come across a few small hills and then stop where you began. You rode in waffle bombs and were drenched in syrup when you came across steep hills. Energy, acceleration, and force made you go. Our roller coaster had a lot of kinetic energy so it moved fast. I was the historian. The other two people in my group were a physicist and a design engineer. The historian found out history about roller coasters. The physicist found out what made a roller coaster move. The design engineer found out what roller coasters were made of.

                           Our roller coaster worked fairly well. The first one we built on a roller coaster stimulator was a failure but our current coaster was a success. I would have more steep hills to bring a rush of adrenaline to the rider. The momentum of the hill going up would result in more loops and twists in the end. I would also have made it a little more realistic, even though I enjoyed making the "Waffle Napalm". 

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Image Source:

Beautiful Wooden Roller Coaster by netwalkerz_net

http://www.fotopedia.com/items/flickr-2483060388