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Anno XLVII - n.2 - aprile/giugno 2014 Riflessioni sul concetto di tempo: un percorso didattico per la scuola secondaria di II grado
The pervasive notion of Time is an integrated part of our understanding of ‘reality’. Many fascinating mysteries related to time are still unresolved. The topic entangles notions belonging to different fields, from Religion to Technology: i.e. Astronomy, Physics, Biology, Psychology, Art, […]
Anno XLVII - n.2 - aprile/giugno 2014 Le idee a fondamento della teoria della relatività
While learning Relativity in high school requires the pupils to think in ways that are not supported by their common reasoning, the teachers usually think that its understanding requires removing everyday experience. The paper describes a discussion in wich the author, […]
Anno XLVII - n.2 - aprile/giugno 2014 Alcuni paradossi
We suggest four paradoxes that can be proposed to high school students as problems, asking them to search for possible solutions. Unlike the usual physics problems and exercises, in a physics paradox the crime is clear but solving it might be, […]
Anno XLVII - n.2 - aprile/giugno 2014 Misura della componente orizzontale del campo magnetico terrestre mediante una bilancia elettromagnetica costruita in casa
We report an experiment for measuring the horizontal component of the Earth’s magnetic field using easily available material, explaining how some conditions that optimize the results were obtained using a rectangular coil. […]
Anno XLVII - n.1 - gennaio/marzo 2014 Sulla scarica di un condensatore ovvero sulla difficoltà di fare modelli giusti
When is radiation important in the discharge of a capacitor? When is it negligible? The answer depends on many geometrical and physical parameters. Reasonable estimates and suitable approximations/schematizations find that the radiated energy is negligible compared to the Joule dissipation unless a small capacitance is used and the circuit is a loop comparable in size to the capacitor. […]
Anno XLVII - n.1 - gennaio/marzo 2014 Dare significato alla fisica
High school pupils? interest in physics and their understanding of the subject is disappointing if the teacher follows a teaching tradition that treats the subject as a bare technique that doesn?t motivate the learners and is unable to introduce them to critical thought. […]