PASCO
MAIN PROCEDURE
   
In this experiment, students will model and make quantitative observations for several position versus time graphs.




    1. Open the Motion Match 1 DataStudio file.

    2. Stand in front of the Motion Sensor.

    3. Press the START button in DataStudio. A 3 second countdown will begin.

    4. Try to match the position-time graph. Data collection will end automatically.

    5. Repeat until the score is above 90. To clear previous data runs, click the "Experiment" menu button and select "Delete all Data Runs."

    6. Print out or sketch your graph with the appropriate variables and units on each axis.

    7. Use the cursor to select the first section of your graph. With your data now highlighted, click on the "FIT" button at the top of the graph and select "Linear Fit." Record the slope and vertical intercept of this first section on the sketch of your graph.

    8. Repeat steps 2-7 for Motion Match 2 and 3.

    9. Repeat steps 2-6 for Motion Match 4.
    DataStudio

    1. What physical quantity does the slope of your graph represent?

    2. What physical quantity does the vertical intercept of your graph represent?

    3. Observe the signs of your slopes. What do they represent?

    4. Observe Graph 2. Compare the speed of both sections. Compare the starting point with the ending point. If the starting and ending points are not the same, explain why.

    5. Observe Graph 3. Compare the speed of both sections. Compare the starting point with the ending point. If the starting and ending points are the same, explain why.

    6. Write a linear equation (y=mx+b) for the first section of each of the Graphs 1-3.

    7. Sketch velocity-time graphs from the position-time Graphs 1-4.

    8. Sketch acceleration-time graphs from the position-time Graphs 1-4.

    9. Write a paragraph which describes your motion in Graphs 1-4. Be as descriptive as possible. Include speeds, directions, positions, etc.