Risultati della ricerca
Anno XLI - n.2 - aprile/giugno 2008 I “ragazzi di via Peruzzi” ricercatori in Antartide: progetto acqua all’ITIS “Vinci” di Carpi (MO)
During the school year 2005/2006, within the National project ?Adopt a School from the Antarctica? and in collaboration with the ENEA research centre ?Laboratori del Brasimone?, two classes of 15 year old pupils had the wonderful opportunity to follow a ?real? […]
Anno XLI - n.2 - aprile/giugno 2008 Sistemi ottici ideali e legge dei punti coniugati
An important aspect of school Physics is to show how different phenomena can be set in the framework of the same general law. In this context I propose a unified treatment of the properties of lenses and mirrors based on the concept of ideal optical system and on the thin lens (and spherical mirror) approximation that describe in a general manner the behaviour of such devices. […]
Anno XLI - n.2 - aprile/giugno 2008 Pendolo con piano di oscillazione inclinabile
This teacher-designed device was used by 14 year-old highschool pupils who already knew how the period of oscillation of a pendulum depends on its length, with the purpose of finding its dependence on the acceleration of gravity. The pupils processed the experimental data with the help of a worksheet on a PC. […]
Anno XLI - n.1 - gennaio/marzo 2008 Valutazione scolastica e fenomeni a doppia soglia
The author proposes a ‘double threshold’ explanation of the persistence of teachers’ evaluation of pupils, based on prior experience, as an alternative to the ‘halo effect’ known in psychology, and describes a simple double threshold mechanical device that illustrates the concept and the analogy. […]
Anno XLI - n.1 - gennaio/marzo 2008 Elicotteri di carta
A teaching proposal using paper helicopters: simple experiments with on line equipment allow to study the motion of these amusing objects. […]
Anno XLI - n.1 - gennaio/marzo 2008 Misura del momento d’inerzia di un libro
The relationship between the moment of inertia of a body and its period of twisting oscillation was studied in the classroom by suspending a book, in three different orientations according to its symmetry axes, to the edge of a table with a length of tape. […]
Anno XLI - n.1 - gennaio/marzo 2008 Coefficiente di attrito statico
The article describes an easily understandable method for measuring the coefficient of static friction. For the experiment, both Real Time Laboratory (force sensor and position detector) and simple readily available items are used. […]
Anno XLI - n.1 - gennaio/marzo 2008 Quando la visione binoculare è un intralcio…
Looking through a pitcher full of water reveals a surprising optical effect. […]