Acceleration and rotation in a pendulum ride, measured using an iPhone 4

Ann-Marie Pendrill, Johan Rohlén
2011 Physics Education  
Many modern cell phones have built-in sensors that may be used as a resource for physics education. Amusement rides offer examples of many different types of motion, where the acceleration leads to forces experienced throughout the body. A comoving 3D-accelerometer gives an electronic measurement of the varying forces acting on the rider, but a complete description of a motion also requires measurement of the rotation around the three axes, as provided, for example, by the iPhone 4. Here we
more » ... hone 4. Here we present and interpret accelerometer and gyroscope data that were collected on a rotary pendulum ride.
doi:10.1088/0031-9120/46/6/001 fatcat:l3l3zfuqkrcpvnyiynpyvorj7i