Me and my group just  did a project on roller coaster.We called it FireBird.We learned that  when  the rollercoaster  starts it picks  up kenetic energy  and when it goes down the hill it creats friction.Also their is three parts of the rollercoaster the track,the coaster, and the momentum.Momentum is the most important  part  of  the coaster because momentum keeps the coaster going after the first drop.Our historian was the person who talked about the three laws of  physics

During the project  their we were in groups of 3 .In the group there were the  physicist,historian,and the egenier.You see we built this roller coaster with seven  loops so it can slow down at the end of the roller coaster so it won't go to fast  at the end.                                                                                                                                                                  

After we were done with the project  we felt that it was agreat  success.But I think we could of put more loops and make the hills a little bit   highier but otherI thought  it was a great success.