A smartphone, with its integrated sensors and CPU, can aid experiments in many different areas of physics. We show how the resonant frequencies of a pipe can be measured using a smartphone and a Bic pen […]
In this article we propose a classic experiment dealing with the conservation of energy. The device we describe allows a strong reduction of uncertainties in evaluating the thermal energy produced by a resistor in which an electrical current flows. […]
This article reports about certain aspects of the physics involved in automobile motion. First, we describe an experiment which aims at determining the friction experienced by a vehicle, as a function of its speed. By relying on commonly available instruments (a smartphone, […]
In the context of the ‘Lauree Scientifiche – Scienza dei materiali’ project, highschool students analyze the energy transfers in a kit including a solar cell, two PEM cells (electrolyzer and fuel cell) and a fan, with special attention to the hydrogen stocking process in the reservoir. […]
Mode of operation and examples of using smartphones as accelerometers in the physics lab […]
We built a cheap apparatus for measuring Planck’s constant through the photoelectric effect. The measurements are performed in the usual way: for each wavelength of the incident light the maximum energy of the photoelectrons is found by stopping them with an electric potential. […]
NOTA L’articolo è il secondo nella pagina […]
This article deals with a rather simple method for measuring the height of telecommunication geostationary satellites. By observing the same telecast on two side by side displays, one of which is receiving the satellite image while the other is receiving from ground relay, […]
Data obtained by simple measurements of the characteristics current-tension of an incandescent commercial bycicle lamp are analized to recognize the electrical transport properties of its tungsten filament, giving the opportunity to explore an important property of the metals in the classroom. […]
A simple check of Einstein – Smolukowskij law was performed. The observation and measurement of brownian motion is possible through a video recorder- television set. […]