Experimental

Part 1: Rolling Cylinder

There are two sensor options for this part of the experiment. You can either use the Arduino with an accelerameter and gyroscope sensor OR use your phone with the phyphox app installed. Note that if you decide to use the Arduino you will have to use the SD card hat instead of streaming the data to a serial monitor.

Insert the Arduino or your phone into the cardboard tube and secure it the best you can so that it will rotate as the tube rotates. Create a ramp with a known length and angle (exact design is up to you). Collect the angular velocity of the tube as it rolls down the ramp. You can do one or more trials but be consistent. Repeat this experiment at four more times at different ramp angles (you should have a total of five data sets). Export all of the data to your computer for the data analysis section.

Note: You will need velocities for the data analysis section. You can calculate these in Python or use LoggerPro/Capstone to calculate them before exporting the data.

Deliverable #4: Submit a photo of your experimental design and a brief (1-2 paragraph) description of your methodology.

Part 2: Falling Rod

Locate the center of mass of your rod and mark it. You should decide if assuming a constant density is a reasonable assumuption for the rod that is chosen.

Deliverable #5: Describe the process you used to find the center of mass of the rod.

Record a video of a rod falling away from a wall. Make sure that the camera is steady and parallel to the starting position of the rod. Import the video into Logger Pro/Capstone and mark the location of the of the center of mass of the rod as it falls. You should scale the video using the length of the rod. Export the data to a .csv file and send to your computer for the analysis.

Deliverable #6: Submit a photo of your experimental design and a brief (1-2 paragraph) description of your methodology.