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Phy 202
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 **
10/16 11
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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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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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Idea 1: In a series of rubber band attached to one another with a force pulling on both ends, will all the bands experience the same amount of tension?
Idea 2: As a ball rolls down an inclined plane, will the ball hit the ground at a farther distance as the inclined plane gets steeper?
Idea 3: Does the velocity of a rotating object change speed after it has been pushed by an outside force?
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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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This could be tested by having the experimenter feel the tension on each of the rubber bands when they are under tension and try to determine if any of the bands have more or less tension than the rest of them. Materials: rubber band, paper clips to attach them together, something sturdy to attach to the ends of the rubber bands.
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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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This could be tested by measuring the distance traveled by the ball on the ground as the inclined plane increases in steepness. Materials: ball, hard surface that can be moved, quarters or another object to prop up the hard surface, timer, ruler
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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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This could be tested by timing the rotating object from beginning to end of its rotation and marking the time at each quarter turn for example to determine the change in velocity over time. Materials: straw or pencil placed on a rotating objects, piece of paper underneath the rotating apparatus to mark the quarter turns of the object, Timer
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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?
30 mins
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Good ideas. We will follow up when possible.
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