Drop the smartphone along an array of magnets and analyze the recorded magnetic field to extract the linear acceleration. (Note, that there is a simple an alternative version using acoustic detection.)
Continue reading “Free fall (magnetic detection)”
The smartphone is mounted on an air track and accelerated by a weight on a string. An array of magnets is used, so the linear acceleration can be explored by measuring the magnetic field.
Continue reading “Linear acceleration on an air track”
Measure the frequency of a pendulum on a string. You can determine the gravity constant this way.
Put your phone into a paper roll and use the gyroscope to determine its speed.
Measure the frequency of a pendulum on a spring.