Lab2 Report

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Apr 3, 2024

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Phys 1020 Physics Concepts I Names: Section: Lab Station: Date: Phys 1020 Lab2 Report Activity 2-1: Making Velocity Graphs 2. a. Make a velocity graph, walking away from the detector slowly and steadily . (1 point) 2. b . Make a velocity graph, walking away from the detector medium fast and steadily . (1 point) Page 1 of 8 Before you leave: 1. Remove tape from floor 2. Shut down computer Save Copy Save and paste your graph here. Re-

Phys 1020 Physics Concepts I 2. c. Make a velocity graph, walking toward the detector slowly and steadily . (1 point) 2. d. Make a velocity graph walking toward the detector medium fast and steadily . (1 point) Question 2-1 : What is the most important difference between the graph made by slowly walking away from the detector and the one made by walking away more quickly? (1 point) Page 2 of 8 Save Copy and paste your graph here. Re-size the Save Copy and paste your graph h Save One is positive, the other is negative

Phys 1020 Physics Concepts I Question 2-2 : How are the velocity-time graphs different for motion away and motion toward the detector? (1 point) Prediction 2-1 : Predict a velocity-time graph for a more complicated motion using a solid line . (1 point) Test your prediction . Move in the way described in Prediction 2-1. (1 point) Page 3 of 8 Save The velocity and time graphs show the speed of him doing it vs the motion shows the position Copy and paste your graph here. Re-size the graph to fit this Save Copy and paste your graph here. Re-size the graph to fit this box

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Phys 1020 Physics Concepts I Question 2-3: Sketch below velocity vectors representing the three parts of the motion described in Prediction 2-1. (1 point) Use Drawing tools. Activity 2-2: Matching a Velocity Graph Prediction 2-2 : Describe in words how you would move so that your velocity matched each pat of this velocity-time graph. (1 point) Page 4 of 8 Save Walking way from the detector slowly: Standing still:

Phys 1020 Physics Concepts I 2. Begin graphing and move so as to imitate this graph. (1 point) Question 2-4: Describe how you moved to match each part of the graphs. Did this agree with your predictions? (2 points) Question 2-5 : Is it possible for an object to move so that it produces an absolute vertical line on a velocity- time graph? Explain (2 points) Question 2-6: Did you run into the motion detector on your return trip? If so, why did this happen? How did you solve the problem? Does a velocity graph tell you where to start? Explain. (2 points) Page 5 of 8 Save 0 – Save Copy and paste your graph here. Re-size the graph to fit this Save We stayed in one position and didn’t move to get the flat line then moved away for positive and moved toward for negative. It did Save It is not because that would have to mean that object would have to move at an indefinite speed

Phys 1020 Physics Concepts I Activity 3-1: Predicting Velocity Graphs From Position Graphs 1. Predict a velocity graph from a position graph. Sketch your group’s predicted velocity graph on the axes that follow using a solid line. Now see how someone in your group can duplicate this graph. (1 point) 2. Test your prediction . (1 point) Question 3-1 : How would the position graph be different if you moved faster? Slower? (2 points) Page 6 of 8 Save We didn’t because we stopped before we hit it. A velocity graph does not tell you where you start, rather if you are moving toward or away from an object or if you are standing still Copy and paste your graph here. Re-size the graph to fit this Save Copy and paste your graph here. Re-size the graph to fit this Save It would be different because it would show you the distance between you and the motion detector during a duration of time, not the velocity

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Phys 1020 Physics Concepts I Question 3-2 : How would the velocity graph be different if you move faster? Slower? 2 points) Activity 3-2: Calculating Average Velocity 1. Find the average velocity from your velocity graph in Activity 3-1. Use the analysis feature in the software to read 10 values of velocity from a portion of the graph where the velocity is relatively constant. (2 points) Velocity Values (m/s) 1 .60 6 .71 2 .56 7 .73 3 .39 8 .58 4 .60 9 .43 5 .73 10 .74 Average (mean) value of the velocity: m/s 2. Calculate your average velocity from the slope of the position graph in Activity 3-1. (2 points) Position (m) Time (s) Point 1 .43 0 Point 2 2.33 4 Change in position (m) 1.9 Time Interval 4s Average velocity (m/s) .475 Question 3-3: Is the average velocity positive or negative? Is this what you expected? (2 points) Page 7 of 8 Save It would be different because it would show you if you moved faster, it would have a solid line steeper line up then if you moved slower it would have a less steeper line Save .60 Save Save It is positive, it is what I expected.

Phys 1020 Physics Concepts I Question 3-4: Does the average velocity you just calculated from the position graph agree with the average velocity you found from the velocity graph? Do you expect them to agree? How would you account for any difference? (2 points) Page 8 of 8 Save It about does. We indeed expected them to agree. If there was a difference, we would try a few more times trying to do the procedures the exact same as the directions read and try to rule out any human error.

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