Risultati della ricerca
Anno XLIX - n.4 - ottobre/dicembre 2016 Un’esperienza di Alternanza Scuola Lavoro
The article is about a recent innovative experience of ‘work-related learning’ which took place in the school year 2015-2016 and involved a third class of Liceo Cecioni, a high school with a scientific specialization. The whole class was involved simultaneously. Our students were equipped with a professional accelerometer VectorNav VN-100: starting from the time series containing the three-axis accelerometer measurements they had to reconstruct, […]
Anno XLIX - n.4 - ottobre/dicembre 2016 Variazioni sperimentali su un tema della simulazione dell’esame di Stato
In this article we describe and analyse an experiment on magnetic induction performed using an apparatus inspired by one of the problems proposed in the latest simulation of the final State exam for Physics. The experimental measurements are in good agreement with the mathematical model suggested in the simulation, […]
Anno XLIX - n.3 - luglio/settembre 2016 Il paradosso del condensatore
A simple argument is given, showing that a revision of newtonian dynamics is necessarily required when you assume the principle of relativity as a general law of physics. The motion of a charged particle within a plane condenser (uniform electric field) is studied in two different reference frames, […]
Anno XLIX - n.3 - luglio/settembre 2016 Ottica geometrica rivisitata
A simple and intuitive model of the functioning of mirrors and lenses is proposed. This model could profitably integrate the traditional way of teaching this topic. The purpose is to make it more effective by giving students a physical interpretation of the way these devices affect light beams. […]
Anno XLIX - n.3 - luglio/settembre 2016 “Vedere” il calore
The availability of low-cost thermal imaging cameras connected to smartphones opens up interesting opportunities in schools. It is now easy to take infrared images and explore phenomena where heating is involved; it is now possible to “see” heat. This article describes some activities carried out in the classroom with a “smart” […]
Anno XLIX - n.3 - luglio/settembre 2016 Il pendolo semplice
You can measure both the period and the amplitude of a simple pendulum “on the fly”, i.e. while it is swinging and slowing down. This was implemented years ago using a photogate connected to the serial port of a personal computer (which made the time measurements). […]