Data Collection with Smartphones

App: https://apps.apple.com/us/app/accelerometer/id499629589

‎Accelerometer on the App Store

‎Accelerometer is an app which allows you to measure acceleration in all three axes in the most beautiful and understandable way ever! • Plots realtime charts of acceleration • Option to include or remove gravity from your measurements • Export your data • Logs maximum and minimum acceleration • Adj…

Dropping phone onto the bed:

Resting: -1G (Y)

Hitting mattress: -5G(Y)

Bounces up: to 1 G

Resting: -1G