Spring 2017 Phy2400
With wsul accounts 020 and 022
Procedure: Part 1: Preliminary Experiment
1. Set up motion detector and connect to DIG/SONIC 1 channel
2. Put the motion detector at the end of a table and mark 4 meters with 1 meter intervals.
3. Use Logger Pro to produce a graph of motion when someone walks away from the detector at a constant velocity.
4.Compare this to a graph when someone walks at a faster pace.
Part 2: Position vs. TIme Graph Matching
1. Now using the Logger Pro and and the motion detector try to match the graph above by walking.
2. Describe how you would walk to create this graph, then test it.
3. Find the velocity graph of the position vs. time graph and see if it looks like this:
Part 3: Velocity vs. Time Graph Matching
1. Using the motion detector and Logger Pro try to walk and try to match a velocity vs. time graph with the graph below.
2. Explain how you walked to make the graph looks like this. If your graph does not look like this, try to create a graph that does look like this.
Results: Part 1:
This graph shows the first trial of the experiment. The person walking walked at a normal pace, and the position vs. time graph was fairly linear. The velocity vs. time graph proved to be relatively linear, but it is not perfect. A reason why our results were not perfect would be that a person cannot walk at a perfectly constant pace, and a person cannot walk in a perfect straight line.
This graph shows the second trial of the experiment. The person walking walked at a faster pace, and the position vs. time graph became less linear, the time also decreased tremendously, because of the speed of the person walking. The velocity vs. time graph became a lot less linear, and this is because of the inconsistency of the pace and linearity. A reason why our results were not perfect would be that a person cannot walk at a perfectly constant pace, and a person cannot walk in a perfect straight line.
We did the experiment by the directions, and we got results as shown on the graph.
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