worksheet_01_08_flvs DADONZO

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Palm Beach State College *

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Physics

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Apr 3, 2024

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Physics 400 Name: Data Collection—Table 1: Trials Distance (cm) Time (s) Average Speed (cm/s) (see question 2) Start 0 cm 0.0 1 100.0 cm (first section) 1.60 62.5 2 200.0 cm (first two sections) 3.38 59.17 3 300.0 cm (first three sections) 5.23 57.36 4 400.0 cm (entire distance) 6.70 59.70 Remember to include graphs A and B in this document or as separate attachments. Unless Otherwise Noted All Content © 2022 Florida Virtual School. FlexPoint Education Cloud™is a trademark of Florida Virtual School.

Data Collection – Table 2: ● Overall Average Speed (cm/s) from graph B 68.02 cm/s (at 1.47 m/s?) Questions: Answer using complete sentences and show your work for all calculations. 1. How does the shape of graph A compare to the shape of the graph B? The shape Of graph B differs from the shape of Graph A for a multitude of reasons. For one, graph A is displaying multiple sets of datas across multiple segments of time, while graph B displays just one linear set of data under one segment of time. 2. For graph A, you can determine the average speed over any interval by using the slope formula, m = ∆y/∆x. Using two adjacent points, determine the average speed over each interval you plotted. Be sure to show your work for all calculations. Include the average speeds in Table 1. Unless Otherwise Noted All Content © 2022 Florida Virtual School. FlexPoint Education Cloud™is a trademark of Florida Virtual School.

You apply the same theory of average speed = distance traveled divided by the time taken to travel said distance but you apply it with the logic/understanding of segment/time intervals. So you can say from the 3 m mark to 4m mark it was a time period of: 6.7 m/s - 5.23 m/s = 1.47 m/s giving you half the equation/ divide it by 100cm which is saying the ball was traveling at an average speed of 68 cm/s down the final meter 3. On graph B, find the slope of the line. That is the average speed for that graph. Record that in Table 2. The work done in finding the average speed hints at the answer for this question, which is 1.47. 4. Why are the speed values in Table 1 and Table 2 called "average" instead of "instantaneous"? The speed values are represented as average and not “instantaneous” because they represent the object’s overall path it traveled divided by the entire amount of time it took to travel said distance. Instantaneous refers to when an object’s speed is measured at a specific moment. 5. Refer to the data from trials 1-4. a. What happens to the average speed of the rolling ball as it moves from one 100.0 cm segment to the next 100.0 cm segment? As the ball roll’s from one segment to the next the average speed gradually decreases. b. What causes the change in the ball’s speed as it moves from one 100.0 cm segment to the next 100.0 cm segment? The ball's speed decreasing from one segment to the next is caused by the loss of momentum over distance after no longer being on an incline, as well as gravity and friction forces/taxes being applied to the ball. 6. How do the average speed values for the shorter intervals compare to the average speed value for Graph B? Graph B portrays one segment of time, specifically the last segment of distance the ball covers, so naturally the average speed will be a lot slower then any of the intervals of time which came sooner. aka trial 1, 2 or 3. Therefore, the average speed’s value will look “bigger” for graph B than values seen in the 1st table of data. Unless Otherwise Noted All Content © 2022 Florida Virtual School. FlexPoint Education Cloud™is a trademark of Florida Virtual School.

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