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This was received but without any additional information.
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Phy 242
Your 'collaborative labs' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Collaborative Labs_labelMessages.txt **
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You will participate during the semester in two series of collaborative lab activities.
The first is designed to be relatively painless, and to begin to develop a degree of teamwork and collaboration.
These activities are designed for teams of four individuals, each with a specific function:
• The designer will come up with the idea for the activity and will specify for other team members how the activity is to be conducted.
• The experimenter will follow the designer's instructions to set up the experiment and collect data.
• The analyzer will analyze the data.
• The interpreter will describe what the results mean.
For each series of activities, you will participate in four different investigations, one as designer, another as experimenter, another as analyzer and another as interpreter.
As each investigation progresses, you will follow the work of your fellow team members.
Please summarize the above, as best you can, in your own words:
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We have two collaborative labs, the first of which will be easier. You will play four different rolls in four different investigations per lab and you will all check each other’s work.
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The first series of activities will be spread out over the first half of the semester, the second series over the second half of the semester.
The first series will be based on systems you have seen in the Key Systems videos.
You will begin by describing at least three ideas for investigations related to the Key Systems videos. Valid ideas will ultimately be developed proposals, each of which will describe a question that could be investigated and tested using simple materials such as those seen in the videos. You will eventually develop three proposals, one of which will be chosen for an investigation. You will be the designer for that investigation.
At this point we're just beginning to explore ideas for the first series of investigations. Your instructor will work with you to further develop your ideas, and perhaps to explore other related possibilities.
Right now you don't have a wide variety of experimental techniques available to you, so this first series of investigations will be relatively simple.
List below three ideas for things you think might be fairly easy to test, based on the systems you have seen so far.
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We could easily test conservation of energy in a pendulum, the difference in K values of the rubber bands, or the acceleration of an object being rolled off an incline.
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Discuss your first idea. How do you think it might be tested? What sort of items do you think might be required? How do you think your idea might be tested?
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To test the conservation of energy in a pendulum we would need a pendulum that we knew what the weight was. Once we found the weight we could calculate the potential energy at the maximum amplitude and use that to find what should be the velocity at the equilibrium point and maybe use a timer to see if that’s correct? Using that we could always find the position vs time graph, the velocity vs time graph, and the acceleration vs time graph.
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Discuss your second idea. How do you think it might be tested? What sort of items do you think might be required? How do you think your idea might be tested?
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Using the same weight and various rubber bands we could measure the distance stretched from equilibrium and use that to derive the K values of each.
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Discuss your third idea. How do you think it might be tested? What sort of items do you think might be required? How do you think your idea might be tested?
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In this lab we would use an incline, a timer, and a measuring stick. It would be conducted similar to how the ramp was set up in the videos with the pendulum and we could experiment on the difference in runs of objects of different weights and sizes to see if we can find a trend.
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Your instructor is trying to gauge the typical time spent by students on these activities. Please answer the following question as accurately as you can, understanding that your answer will be used only for the stated purpose and has no bearing on your grades:
• Approximately how long did it take you to complete this activity?
15min
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Very good ideas.
I've gotten responses from most of your class, and as soon as I get the rest we'll begin organizing the project.
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