Velocity vs Time
1. Click graph shown here to enlarged view and describe in words how you would walk to produce this velocity vs. time graph .
2. In Logger Pro, load the MotionVelocity experiment (File/Open/MotionVelocity) to test your prediction. Choose a starting position and stand at that point. Start the data collection by clicking "collect" button. When you hear the Motion Detector begin to click, walk in such a way that the graph of your motion matches the target graph on the screen. It will be more difficult to match the velocity graph than it was for the distance graph.
3. Now attempt to replicate the second graph shown here (click graph here for enlarged view).
- Describe how you walked for each of the graphs that you matched.
- For each of you velocity vs. time graphs, sketch what you believe the distance vs. time graph would look like. Then in Logger Pro, and a distance vs. time graph to check your answer. Do this by double clicking on the y-axis label and checking Distance. Axis scaling can also be changed by clicking them.
- What does the area under a velocity vs. time graph represent? Test your answer to this question using the Motion Detector.
- What type of motion is occurring when the slope of a velocity vs. time graph is zero?
- What type of motion is occurring when the slope of a velocity vs. time graph is not zero? Test your answer using the Motion Detector.