Day 22: Rehearse

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We finished editing the manual, made a few copies for the presentation tomorrow and practiced the presentation.

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Day 40: Analyzing Conservation of Momentum videos

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Day 15:  Drag Calculation + Progress on Manual After watching (and for Jan Mark, participating in) the afternoon presentations, we worked on 2 projects.  We are nearly done editing the experimental procedure section of our lab manual write-up of the Free-Fall experiment.  The complete write-up should be ready by early next week so that we can get volunteers to try the experiment. We were also able to use the ping pong ball data to calculate the drag coefficient, C, for a ping pong ball. Ping Pong ball data When air resistance is taken into account, the equation for acceleration of a falling body becomes: where ρ air is the density of air, A is the cross sectional area of the falling object and v is its instantaneous velocity. By plotting a vs the velocity squared, C can be derived from the slope. For typical falling objects, the range of C values is from 0.4 to 1. This graph is seen (will be inserted) below and the calculations give: Givin...
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Day 7: Microsoft Excel

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The last videos were analyzed using PASCO Capstone. We notice inconsistence in g values for different masses. Thus, we plan to study the results for particular masses by performing additional trials on Monday. Image 1 displays a screenshot of a table in Excel. The table mentions the object's (ball's) type including lead, steel, golf, wood, and hollow plastic toy ball corresponding to it's experimental gravitational acceleration value.  Image 1 . Screenshot of Excel Table The first graph, Figure 1, was created using Microsoft Excel. It displays data with the relationship between gravitational acceleration and mass of lead, steel, wood, golf, and hollow plastic toy ball.  Figure 1. Gravitational Acceleration vs Mass of Various Balls. As described in yesterday's blog, we measured the effect of dropping the ball not even with the meter stick. Figure 2 presents the second graph created on Microsoft Excel. Our data for the steel ball is exhibited below. Neg...
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