Measure the time between two or more acceleration events. This uses the accelerometer to trigger a stopwatch by (small) mechanic shocks.
Archives: Experiments
Use the light sensor to measure times. You can set a threshold and determine the duration of brighter/darker states or the time between two bright/dark states.
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Measure the frequency of a pendulum on a string. You can determine the gravity constant this way.
The experiment “Pressure” just gives the raw data from the phone’s barometer.
Matthias Troiber has sent us an entire series of worksheets, which are currently available in German only.
Use the proximity sensor to measure times. You can determine the duration of close/far states or the time between two close/far states.
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Put your phone into a paper roll and use the gyroscope to determine its speed.
This experiment is no longer available on iOS! (details)
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Turns your phone into a sonar to either measure distances or determine the speed of sound.
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Measure the frequency of a pendulum on a spring.
Generates a sine tone of a given frequency and outputs it through the speaker.