Rube Goldburg Project
In my Rube Goldburg project I have had no experience whatsoever on building a Rube Goldburg machine and I was completely nervous on building a machine that works efficiently and smoothly. We had to have 3 simple machines on our project and at first I was not sure how I was going to put 3 simple machines, but once I had my rough draft I found it wasn’t as hard to place it all together since once I was building I noticed I was making simple machines while building without even knowing it. My 3 simple machines were Inclined plane, Lever, and a Pulley. When my Rube was running I noticed it had 3 physics principles as well. Momentum/Speed, Kinetic energy, and Potential Energy.
Kinetic and Potential Energy Problem/ Answers:
“If a Rube Goldberg machine begins by dropping a 7 gram steel ball 50 cm into a bucket on a pulley system.” For Potential Energy you could find the answer by Multiplying the Kilograms by the height by the gravity. In this case it would be 0.5m • .007-km • 9.81 m/s to the 2nd power = 0.0343J
“When your steel ball land in a tiny bucket it has a velocity of of 45cm/s. Calculate the kinetic energy of your steel ball. Show your work. KE(joules)=(½ mv squared) For Kinetic Energy you could find the answer by Multiplying the Mass by the Velocity and by 0.5. In this case it would be, 0.5 • .007 • 45 cm/s squared = .1575 J
For my Rube Goldburg design to know exactly what I was going to do we made small Rube Goldburg projects before we did the big actual ones and it gave me a lot of ideas to see how me and my group were able to finish a small Rube in 2 days and with these ideas I was able to draw out a rough design on paper of my main idea. Once I started building I noticed some things couldn’t be done and I thought up new ideas on what I could add. From the 21st century skills list I believe my area of strength on this project was Effective Communication because I used it for every part of my project! Weather it was what color the background was going to be, to how we would put all of our designs together and make them work together. For my area of growth on the 21st century skills I believe mine was Critical thinking because even though I did use it for building my part of the project, but I could have used it more to help me make not only my project but all of my group members projects work smoothly and functionally.