hybrid_car.pdf | |
File Size: | 480 kb |
File Type: |
|
The hybrid car project was completed in a very short amount of time. All groups had 3 non-consecutive build days. Then we had about a week to calculate for our car and create a presentation. Our presentation consisted of a live run of our hybrid car and a powerpoint. The powerpoint included a distance vs time graph, a velocity vs time graph, a Joules PE and seconds graph, and other information. The goal of our project was to submit an environmentally friendly and innovative car to Hyundai. My group and I accomplished this by making a rubber band powered car, that didn’t require fuel, out of wood and cardboard. Our hybrid car had to travel a distance of 5 meters with 2 rolls of pennies, each roll was a dollar’s worth. Reflection Throughout this project, my group struggles with making an effective car that could travel 5 meters with 2 rolls of pennies on top. Our farthest run was only 4 meters and after that, our car started to decrease in distance every run. Our rubber bands snapped after our farthest run which impacted our vehicle. My group and I succeeded at building a brand new vehicle in only 2 build days. The design of our car was very creative and we worked well as a group. Our first idea of a water bottle car didn’t work after we found out about the masses it had to transport. I improved on my leadership skills and stayed on task as well as keeping other people on task. I also improved on my attitude and demeanor. I could have improved on my empathy and cooperation. Concepts Spring Constant (k):stiffness of a spring or tendency of a spring to go back to its original form Spring concept=Force/distance (N/m) Potential Energy of the Spring (PEspring): energy stored by expanding stretching or compressing an elastic object. PEspring=1/2(spring constant)(distance spring is compressed or expanded)^2 (J) Velocity (v): rate of covered distance in a direction Velocity=change in distance/change in time (meters/second) Acceleration (a): rate of change of velocity Acceleration= change in velocity/change in time (meters/second squared) |