Risultati della ricerca
Anno XLII - n.4 - ottobre/dicembre 2009 Moto delle cariche in un campo magnetico non uniforme
The trajectories of charged particles in the non-uniform magnetic field generated by two parallel identical currents are studied. Although this case is not usually considered in the high school, its basic aspects are not too difficult and can be understood by the students. […]
Anno XLII - n.4 - ottobre/dicembre 2009 Force Concept Inventory: un questionario per valutare l’efficacia dell’insegnamento della dinamica
The Force Concept Inventory is designed to evaluate the teaching quality of a course on Newtonian mechanics. The structure of the FCI and its reference to students’ common concepts and misconceptions are discussed in relation to some of its items. Two actual examples of how the results can be analyzed are presented. […]
Anno XLII - n.4 - ottobre/dicembre 2009 Il Dottor Julius Robert Mayer e i processi energetici degli esseri viventi
Although Julius Mayer was one of the first scientists to propose the conservation of energy he is usually ignored in physics curricula. He should be especially remembered as the first person to understand energy transformations in living systems. […]
Anno XLII - n.4 - ottobre/dicembre 2009 Centoquaranta fonti… quattrocento anni fa
In the International Year of Astronomy this article discusses some little known aspects of how scientists shared scientific observations and discoveries in Galileo’s times. […]
Anno XLII - n.2 - aprile/giugno 2009 Determinazione della carica specifica dell’elettrone per mezzo della deflessione magnetica dei raggi catodici
This article describes an experiment carried out by students as a group activity within the annual Physics workshops held by the ITIS ?L. da Vinci? in Carpi (MO). […]
Anno XLII - n.2 - aprile/giugno 2009 Confronto tra l’efficienza di un riscaldatore elettrico a effetto Joule e di una pompa di calore a effetto Peltier
The experimental comparison of an electric heater based on the Joule effect with a Peltier effect heat pump shows that the second device is the most effective of the two. […]
Anno XLII - n.2 - aprile/giugno 2009 Come far vedere un tester a tutta la classe
The combination of a webcam with a computer and a projector makes collective reading of the same instrument, once impossible in large class environments, possible and easy to do. […]