Do it Better project
Analysis of Project
Over this entire year we have used the engineering design cycle on all of our projects, but we never were able to complete the last step of the project which is redesign. This project is based around that last step. We were asked to pick one of our previous projects and "do it better." We were supposed to take what we learned from the project we already did and improve on what we messed up.
I worked with Ben Franks and Mikey Harris on a hybrid car. We all learned from that experiment that string and rubber band is the best fuel source to use. We also learned that CD's were the best wheel's because they were light and had less surface area for friction. The final design we came up with was a mix between my old car and Mikey's old car. Ben's old group used a rat trap, but we didn't want to use that idea because it wasn't as predictable.
I worked with Ben Franks and Mikey Harris on a hybrid car. We all learned from that experiment that string and rubber band is the best fuel source to use. We also learned that CD's were the best wheel's because they were light and had less surface area for friction. The final design we came up with was a mix between my old car and Mikey's old car. Ben's old group used a rat trap, but we didn't want to use that idea because it wasn't as predictable.
Content
Thermal Energy-it is the energy a substance or system has, related to its temperature(the energy of moving or vibrating molecules). Thermal energy will always be increasing because it is the energy lost from the potential energy, and potential energy is always decreasing. In our project, the car's thermal energy slowly increases for the first 1.5 meters, then it starts to get a lot steeper for the next 3 meters, and finally it gets a little less steep for the next .5 meter.
Kinetic Energy(KE)-energy due to movement. KE=1/2mv^2. The kinetic energy in our car increases for 1.5 meters and then decreases for the rest of the 5 meters.
Potential Energy(PE)-it is the energy stored in an object due to its position in a force field or in a system due to its configuration. PE=mgh. The potential energy in our car goes done almost at a constant rate.
Velocity-it is the rate of change of the displacement, the difference between the final and initial position of an object. V=d/t. The velocity of the car increases for the first 2 meters and then it reaches its terminal velocity. It slowly decreases for the next 2 meters and finally decreases really fast for the last meter.
Total Energy-it is the total amount of energy in something. Our total amount of energy was 3.75 Joules.
Kinetic Energy(KE)-energy due to movement. KE=1/2mv^2. The kinetic energy in our car increases for 1.5 meters and then decreases for the rest of the 5 meters.
Potential Energy(PE)-it is the energy stored in an object due to its position in a force field or in a system due to its configuration. PE=mgh. The potential energy in our car goes done almost at a constant rate.
Velocity-it is the rate of change of the displacement, the difference between the final and initial position of an object. V=d/t. The velocity of the car increases for the first 2 meters and then it reaches its terminal velocity. It slowly decreases for the next 2 meters and finally decreases really fast for the last meter.
Total Energy-it is the total amount of energy in something. Our total amount of energy was 3.75 Joules.