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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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There will be two series of the collaborative labs in which there will be four members that will be set in following order: designer, experimenter, analyzer and interpreter. At each experiment the students must follow the previous person’s ideas and inputs.
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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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My three ideas include testing the tension of an uneven assortment of rubber band and paper clips, to test the speed of two balls (one hollow other filled) , and to test the frequency of the pendulum with three different masses.
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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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Testing the tension between uneven sorted rubber band and paper clip. This can be tested by setting an assortment of one rubber band, two paper clips, one rubber band, a paper clip and a rubber band in the said order. Then we can test it by stretching them and observe which section of the assortment has the most tension, then using equations to verify it.
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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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The speed of the two balls of one hollow and other filled can be tested by having a constant incline maid out of the smooth foam board and releasing the two balls from the same position and seeing which reaches to the end of the incline foam. The more precise speed of the balls can be attained through measuring the time it took for the balls to reach the bottom of the incline and the distance of the incline. And finally, the balls can be observed upon why the hollow or the filled one has more speed than the other.
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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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Testing the frequencies of the pendulum with different masses. To test this, there will be three different equal interval masses hung from the pendulum. The pendulum swing will be kept constant along with the time for the entire swing which will be 60 seconds for all the masses. The frequencies for each mass per minute will be observed to conclude why either the bigger or smaller mass had more swings per minute that other.
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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?
20 minutes
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Very good ideas.
I'll be getting back to you on this fairly soon, once I have responses from a number of other students.
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