Articoli rivista
Note di laboratorio
Anno XXX - n.2 - aprile/giugno 1997 Trasformazione termodinamica isoterma on-line: un’occasione per discutere la realizzazione e la taratura di un trasduttore di volume
This paper presents a simple educational on-line experiment about gas (air) transformation. This experiment was performed using an intelligent serial interface (ULI) and a volume transducer designed for this purpose. The paper is divided into two parts: the first explains the design and the calibration of the volume transducer, […]
Anno XXVII - n.1 - gennaio/marzo 1994 Un elettroscopio Nuffield a microbilancia come un’alternativa all’elettroscopio a foglie d’oro nell’insegnamento dell’elettrostatica. (Traduzione da School Science Review, vol. 71, n. 257, Giugno 1990, a cura di Matilde Cilento)
A new approach to the teaching of electrostatics is described which avoids the well-known conceptual difficulties of the gold leaf electroscope. Simple equipment is used which the pupils can make for themselves for a few pence in a few minutes; and the experiments are both spectacular and fun. […]
Anno XXVII - n.3 - luglio/settembre 1994 Un esempio di utilizzo di una piccola stazione meteorologica
A simple meteorological station, connected on-line to a personal computer, has been used at the same time by teachers in physics and science, with students of high level school, in a scientific Liceum. Within the physics course, student made some hardware/software test of the automatic acquisition system; […]
Anno XXVIII - n.3 - luglio/settembre 1995 Un’esperienza con differenze di potenziale variabili nel tempo
After introducing the concept of electric potential difference to students in the last year of secondary school, an experiment using a variable frequency generator, an oscilloscope and a loudspeaker allowed them to “see” and “hear” variable potential differences. The experiment was the starting point for an empirical introduction to decomposing electrical signals into sinusoidal components. […]
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 LI - n.2 - aprile/giugno 2018 Un esperimento “classico” rivisitato: la misura di h con i LED
A variation of the “classical” experiment for the measurement of Planck’s constant h using LEDs was proposed at the 2018 AI F Summer school of L’Aquila. This variation, in which the discharge of a capacitor provides the needed variable voltage and the measurements are made with an Arduino board, […]
Anno XXVIII - n.2 - aprile/giugno 1995 Un esperimento per determinare l’andamento del rapporto Q/V per un conduttore qualsiasi
This article describes a simple method to experiment the relation Q/V=const, by means of the direct measurement of Q and V. The necessary equipment can be easily found in any physics laboratory, as it is basically made of a 0-600V dc generator, […]
Anno XLVI - n.3 - luglio/settembre 2013 Un esperimento per introdurre il caos deterministico nei licei
In this work it is shown how it is possible to build a simple device: the dripping faucet. This physical system exhibits an extremely interesting dynamic behaviour, useful to introduce the subject of deterministic chaos in high schools […]
Anno XLIII - n.3 - luglio/settembre 2010 Un esperimento per sfida: X Scotch
Triboluminescence was studied using a self-built 8-litre vacuum chamber operated at a pressure of about 1mtorr. Luminescence is observed in the chamber along the peeling line of an unrolled adhesive tape. The tribo-mechanism produced electrons and X-rays are revealed by the intense luminescence of a BGO crystal positioned close to the peeling line. […]
Anno XXIX - n.3 - luglio/settembre 1996 Un esperimento sulla dissipazione in un sistema meccanico
A simple dissipative mechanical system is discussed in order to introduce, at high school level, the basic ideas on which are founded some typical experimental techniques concerning condensed matter. Some reflections are made concerning the passage from a macroscopic description to a microscopic one. […]
Anno XXIII - n.1 - gennaio/marzo 1990 Un’idea per un trasduttore di temperatura
This article shows how students can be taught the concept of using a transducer to measure the temperature with a very simple electronic circuit in which a NTC thermistor acts as sensor. Only a basic knowledge of the main properties of transistors and thermistors is required. […]