Andrew's Digital Portfolio
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Density Wave Project

Weather

Rube Goldberg Project

This project was to create a Rube Goldberg machine that would explore the world of physics and how to use the skills we learned to build the machine from spare part lying around to complete a simple action, such as pouring sauce on a salad, or pop a ballon.
For our project we were asked to take all of the physics skills we had learned and put them to work in our project to create a fully functional
Rube Goldberg machine.  My teammates and I came up with the idea to dip pretzels into chocolate, but over the course of the project, and wit all of the steps that we added to the base of the Rube, changed the ending.  So in the end we had to change it to dipping a carret into ranch dressing. The most challenging part of this project for me was finding a way for all of our steps to work together, especially the very last step, and to troubleshoot how to fix the machine when it stop working, which luckily didn't happen very often, and because we spent so much time creating, brainstorming and fixing this project it became a memorable part of the school year. While this project was challenging, it was also fun to create a machine that would complete a simple action because I'm to lazy to do it myself, but not to reset up all of the steps.  We did calculations that we learned over for this project to demonstrate what we learned, and to show how well we were able to communicate our project to others through numbers. During this project I feel like I learned a vast number of things, but I feel that I mostly learned how to work with others to create a large project, and to make it my best, as well as theirs.  This project for me was very enlightening about how physics work in everyday life, and how to use them in the real live world of today.  I was very glad to be doing this project with a classroom full of people I like to live with, and to be able to learn how to do physics with numbers and letters.
Overall the project, on my part was very fun, and if I could go back in time and change it to to better with all of the experience and knowledge that I have gained.

Rube Goldberg Steps

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Talking points for Rube Goldberg Project

Talking points
How we put our newfound physics skills into play

How we decided what to do for our rube

What we changed over the project

Who we worked with

What was required to build the Rube Goldberg to be fully functional
How long we had to work on our project
What our Rube Goldberg does

How we did the calculations

​What was the most challenging aspect of this project

RUBE GOLDBERG STEPS
  • Marbles rolls down track from top
  • Marble projects off edge onto next track
  • Marble rolls off the second track and rolls up the third track
  • Marble speeds down the longer track and transfers energy to hammer perched on end of track
  • Hammer swings down and transfers energy to car parked under marble track
  • Car rolls along track, slowly losing speed to friction, until transferring energy to another hammer
  • Hammer swings up and whacks marble along a smooth car track
  • Marble falls down tube into 3 tiered marble track, gaining speed
  • Marble uses force to knock dominos over at the bottom of the tracks
  • The Dominos hit one another until hitting the side of a wheel and axle
  • The wheel rotates on the axle, letting a ball loose
  • Ball rolls down tube, while transferring potential energy into kinetic energy, the ball hits a lever
  • Lever uses mechanical advantage to force car along track
  • Car speeds up along track and puts energy into another lever
  • Lever uses MA to pull string easier
  • String pulls out plastic tube from under wheel, made harder due to friction
  • Wheel rolls down track at moderate speed
  • Wheel transfers energy into pretzel and sends it into the air
  • People enjoy pretzels

Step 1: The Distance of Marble Launched
Velocity of marble = d/t
Distance vertically = 5 cm
V = 23cm /8s = 0.27m/s
Landing place is: 1cm on next track
Step 2: Potential Energy of Marble at top of 2nd track and distance launched.
Height of track = 3.8cm
Thickness of marble = 1.5cm
Gravity = 9.8m/s
3.8 x 1.5 x 9.8 =  55.86 Joules…
Launched is: .35cm on next track
Step 3: Mechanical Advantage of Hammer
Length of hammer = 8cm  
Distance of swing = 24cm
24/8 = 3   Mechanical advantage is 3… energy tranfered= 55.86J
The car is 3 times easier to push with the hammer, instead of a marble.
Step 4: Mechanical advantage and power of Wheel and Axle
Wheel = 4cm.   Axle = 1cm
MA = Wr/Ar   MA = 4/.5
Mechanical Advantage of the Wheel and Axle is: 8
Dominos transfer energy to each other, then to the Wheel and Axle
The Wheel and Axle makes rotation easier, allowing the ball to release faster.
​Step 5
Conservation of energy for first marble.
PE= 55.86 Joules
KE = ½ mv2
KE= 47.25
Energy Efficiently = 84.5%


1st Physics Project

This was a project for 9th Grade Physics and was about how technology affected us. We decided to focus on the question of texting today in our modern world. We did this project because it it was our first project for science and was teaching us valuable skills in the scientific world. We were asked to produce a project summary of all the data we collected for our question, and create a final visual draft that would be displayed somewhere where students and teachers would see it and read it. Our question was if texting is making calling an obsolete form of communication. 

Growth 

During this project I feel like my skills personally grew in time management in the classroom, and this has allowed me to manage how and when I work on my reports and projects.  Using a project schedule, I plotted out the time I could use in the classroom and time at home, and this allowed me to know exactly what times I have available to work on my reports.   During this report I posted how long I spent working on it, in a project log so I would know what days I worked on the report and for how long. I feel like I learned about how to write a scientific hypothesis very accurately, and this was useful because it led me to answering the questions that I had posed to myself, about the world, and about what happens in nature.  This project has a new area for me in the way that I have not done scientific projects before, and so this led me to experiencing something new.  Physics has been very good for me in the respect that I am learning many new things.

Projectsummary Andrew- Bryce

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