Gas Pressure and Speed in an Elevator

Try this

Using the Barometer tool, measure changes in atmospheric pressure up and down a long elevator ride. Using Stevin’s Law, which relates fluid pressure and depth (or altitude), determine the displacement of the elevator in the given time, and calculate average velocity during the constant velocity portion of the ride.

Challenge yourself

• Create a graph of Pressure vs. Time for a ride up and down the elevator.
• Perform column calculations to create a graph of Position vs. Time
• From the Position vs. Time graph, determine the average velocity of the elevator during each major segment of motion (going up at a constant speed, going down at a constant speed, stopped).
• Collect accelerometer and barometer data at the same time (in Multi Record mode), and compare the graphs of Position vs. Time, Velocity vs. Time from the barometric data and the Acceleration vs. Time from the accelerometer data.