Rube Goldberg Project

 

 

 

 

Step Instructions:

  1. The first step in this Rube Goldberg Project is dropping one marble and one dice into separate shoots. This kickstarts the whole project and will be the start of the chain reaction.
  2. The second step is the dice rolling down the original shoot, then down a funnel-like contraption. From there, a paper towel roll carries the dice to the rock on my space bar, which will play the video (The Pi Song).
  3. The third step brings us back to the marble. After it has gone down the shoot, it will be transported by a screw, then dropped off onto an inclined plane.
  4. The fourth step is where the marble hits a stick, which knocks off a rock sitting on the edge of a counter, causing the rock to fall into a toilet paper roll and down a second inclined plane, which will lead us into our last step.
  5. The fifth and final step includes the end result of this project. Once the rock lands into a paper cup, the rock gets pulled down by the weight, activating the pulley system we created. The other cup (that has water inside) has additional string attached to the wall of the cabinet, restricting how high one end of the cup can go. Once the water cup gets pulled up, the end facing the clear glass cant go higher, causing the cup to tip slowly, pouring the water into the glass below it.

Energy Transformation Description:

First Transformation: Gravitational -> Mechanical

This is gravitational to mechanical because first we drop the dice, making it fall into the shoot, where it then becomes mechanicals, due to the energy actively moving the dice.

Second Transformation: Mechanical -> Sound

This is mechanical to sound because the dice moved to the spacebar, which caused the video to play, causing sound.

Third Transformation: Mechanical -> Light

This transformation is the same as the previous one, instead of sound, light plays as well. Once the dice hits the spacebar (or at least the dice hitting the rock, hitting the spacebar), then the video plays and light is produced.

Energy Forms Description:

Gravitational

We used gravitational energy when the marble/dice first dropped into their shoots, and when the rock fell into the cup.

Mechanical

We used mechanical energy when the marble/dice were being moved by the ramp.

Sound

Sound energy was used when we played the video via the marble hitting the rock, therefore hitting the spacebar. The sound is the ‘Pi Song’ by AsapSCIENCE.

Light

When the Pi song was played, so was an animation. There were moving colors, shapes and objects, meaning light was omitted from the screen during the duration of the video.

Electrical

Electrical energy wasn’t used as one of our examples, but the use of the computer itself is the use of electrical energy. By this account, another form of energy we could have included is thermal energy, since the use of the computer slowly heats the device up as we were recording our video.

Science 10 – Paper Airplane/Scientific Method Assignment

Experiment Overview

The project me and my partner conducted was to see whether or not a paper airplane would fly further with or without additional weight added. We used paperclips as our added weight, one plane did not have any weight (plane 1), while another had one paperclip taped to the middle of the wings (plane 2), and finally a final plane like plane 2, but with another clip in between the other two resting in the middle (plane 3). We threw each plane 5 times, and recorded our results which will be talked about and explained in the following prompt:

Experiment Results

After finding the average of each plane, we discovered that our hypothesis was correct, and that the lightest plane (plane 1) flew the furthest. Although something that surprised both me and my partner was that the heaviest plane (plane 3) came second in terms of distance. Plane 1’s average for distance was 9.952 meters while plane 3’s average was 8.328 meters. The data is more shocking when it is mentioned that plane 2’s average was only 2.942 meters. We had a few observations during the experiment and one of the most important was the fact that plane 3 would turn upside down, causing it to glide more smoothly compared to plane 2. We speculated this was caused by the balance the plane had, not only having a paperclip on each wing, but one also in the middle to keep it stable, since we noticed plane 2 would normally do a loop, causing it to go backwards instead of forwards. So while our hypothesis was indeed accepted, it was not how we expected the experiment to turn, and it was quite interesting to see how the placement of the paperclips affected its flight so drastically.

What I Learned

Something unexpected I have learned from this experiment is how weight distribution can greatly affect how paper planes fly. It may seem obvious, but at the time it did not quite click with me and it was interesting to see how both the planes with weight took it differently and how it either greatly lengthened or shortened the distance both planes flew. I also learned that the lighter a paper airplane is, the further it will fly due to having more lift than the other two planes than added weight.  A final thing I have learned from this experiment is the importance of having so many trials. With each plane having similar but different levels of success, having 5 trials per plane definitely improved how accurate our average was in the end.

What Would I Do Differently?

Something I would do differently regarding my experiment (comparing how different weights of paperclips affect the distance a paper plane can fly) is the amount of trials used in total. While we did 5 trials for each of the three planes, additional trials would give a clearer result, therefore improving how accurate the entire experiment was. Another tweak me and my partner could have made was testing how different types of paper airplanes would affect how far the planes flew as well. We used a basic Dart design but what if we used a Rocket or Arrowhead design? How would the statistics vary? Next time I do this experiment, I definitely would experiment with replacements for the weights, for another object other than paperclips. Some examples of other materials that could be used are buttons, popsicle sticks, fabrics of some kind, cardboard and etc.

Picture Of Our Planes