Smartphone-Experiment: Free fall (en)

Measure the duration of a free fall using your smartphone and the acoustic stopwatch in phyphox.

The video on measuring the speed of sound can be found here:

You can also watch a German version of this video:

[rachel]

I tried the ruler method today with my Y10s (14-15 year olds). Dropping a ball from a bench our value of g was too low but with the ball dropped from a beam just below the ceiling we got very good results. It helps them to understand that greater distance and greater time makes the reaction/response time error less significant. They also came up with the idea of one phone at the top (measures too long) and one at the bottom (measures too short) and taking the mean of these. Lots of good practical physics learning in this .

[mikerfur]

Buenísimo. Gracias, Física se lo agradece

[prakharyadav]

Really a nice apk for we engineering students thanks to the development Team And also thanks for the phyphix without any ads i love it

[actiagodc]

Could you tell me which software you used to make the graph of time as a function of height?
congratulations for the initiative. the app is amazing.

[montel]

What may be the reason for the second penny taking longer to hit the

[ericvalverderosado]

how can i measure the error?! please, someone help me!!!

[boka_]

We have this video as the mechanics practical for free fall😂

[guninen]

I will try these with my students, hope they love it.
From Thailand

[victoriacolomer]

Gracias mañana vamos a realizar este experimento en clase de Física y química

[thirdsakkarjonboon]

It is very useful app. Thanks for sharing.

[CarlJosephMurray]

Commit irony & focus towards your experimental questions omit notion mandate results.

[matbossbeg]

Vous aussi c chiant ou c que moi ?
Pcq wsh inutile