49 research outputs found
Physics experiments using simultaneously more than one smartphone sensors
In the last years, numerous Physics experiments using smartphone sensors have
been reported in the literature. In this presentation we focus on a
less-explored feature of the smartphones: the possibility of using (measure and
register data) simultaneously with more than one sensor. To illustrate, in the
field of mechanics simultaneous use of the accelerometer and gyroscope (angular
velocity sensor) or in optics experiments synchronous use of the ambient light
and orientation sensors have been proposed. Indeed, this is a characteristic
that simplifies experimental setups allowing to see through the physics
concepts and, last but not least, reducing the costs.Comment: 6 pages, 3 tables, 4 figures, Extended abstract, GIREP-MPTL 2018 -
Research and Innovation in Physics education:two sides of the same coin.
9th-13th July 2018, Donostia-San Sebastian, Spain https://www.girep2018.com
A home-lab experiment: resonance and sound speed using telescopic vacuum cleaner pipes
We propose a home laboratory in which a telescopic vacuum cleaner pipe and a
smartphone are used to investigate sound speed and acoustic resonance. When the
pipe is hit or the hands clapped near one end the sound produced is registered
by a smartphone. By means of an appropriate application the resonant frequency
is obtained. Varying the pipe's length and registering the corresponding
resonant frequency allows to obtain the sound speed. This home-lab, first
proposed during covid19 pandemic, has been incorporated as a home challenge to
experiment with acoustic resonance in new normal times.Comment: 3 figs, 4 page
The Circular Atwood Machine
The Atwood Machine, a classic apparatus in physics education, has
historically been pivotal in demonstrating Newtonian mechanics, specifically
Newton's Second Law. This study introduces an innovative adaptation, the
circular Atwood machine, aimed at exploring circular motion and angular
dynamics and integrating emerging technologies, specifically smartphone
sensors. Through a rotating disc subjected to controlled external torque, the
experiment delves into the relationship between the torque applied and the
resulting angular momentum. The study not only presents the theoretical
framework but also outlines a practical setup using readily available
materials, emphasizing the potential for contemporary technology to enhance the
comprehension and teaching of fundamental physical concepts.Comment: 6 pages, 4 fig