Roller Coaster Physics | 2/4/19-2/8/19

Summary:

       When creating a model of a roller coaster (so their is no motor or any other force acting upon it besides gravity), the factors that determine the amount of force/energy a roller coaster has are the mass and speed of the roller coaster. Also, when there is no friction, the only factor that affects the final speed of a roller coaster is the total height lost. Total height lost is equal to the first hill's height subtracted by the final hill's height. For example, if you have three hills where the hill's heights are 100 cm (for the first hill), 30 cm (for the second hill) and 60 cm (for the last hill), the total height lost is 40 cm. This is due to how 100 cm subtracted by 60 cm is equal to 40 cm. Thus, the total energy of the car does not change when going down a hill. In addition, hill two does not have an effect on its final speed.

S&EP 1-Asking Questions and Defining Problems:

       This week I asked questions and defined problems when constructing and designing my roller coaster. I asked questions such as, "how might we decrease the friction to increase velocity?" I also defined problems such as, "It seems as though our loop is to big and our marble (the 'cart' of the roller coaster) will not reach a high enough velocity to go through the all of it." Another problem I defined was, "based on what we have seen, the most effective placement of a loop seems to be right after the big drop at the start." In the end, all of these comments ended up creating insightful ideas upon my counterparts and I. It allowed us to truly brainstorm the greatest solutions due to how we identified all of the things that would decrease our roller coaster's chance at success. 

XCC-Systems and System Models:

       The system I identified this week is a prototype of a roller coaster. The scientific parts (the parts that aren't otherwise seen) of a prototype of a roller coaster are mass, speed/velocity, gravity, force, and energy. These parts work together to all create movement of the object that is running the roller coaster. Energy is needed to produce force, which in this case is gravity. . That force is then uses that energy to move an object and its mass which produces energy. Which follows the third law of motion in which states, "for every action, their is an equal or opposite reaction. The energy needed to produce force is used to exert the same amount of energy on the object and its mass. Lastly, the speed/velocity is affected based on the things stated above (mass, gravity, force, and energy). 

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