Risultati della ricerca
Anno XXXIII - n.2 - aprile/giugno 2000 I bernoccoli e la sicurezza stradale ovvero: serve il casco anche in casa?
A simple way to estimate reasonable values of the forces and pressures acting on the head during collisions is proposed to highschool students. Starting from known situations, the physiological tolerance limit is estimated. The limit situations are then analysed and conclusions are drawn on the convenience of protecting the head with technologically suitable helmets. […]
Anno XXXIII - n.2 - aprile/giugno 2000 Saltelli, rimbalzi e altre acrobazie: come coinvolgere gli studenti nello studio delle oscillazioni
Highschool students studied oscillatory motion using sensors interfaced with graphic calculators. Three kinds of activities were performed: a first activity in the school gym, an extra-curricular laboratory course and a grade 11 lab class. The potentialities of physics investigation starting from the study of phenomena in an informal context are pointed out and the advantages and problems of the use of on line acquisition are discussed. […]
Anno XXXIII - n.2 - aprile/giugno 2000 Una misura semplice di π
A very simple experiment allowing to measure π is presented. No particular equipment or theoretical knowledge is required. The experiment could be performed during one of the first laboratory activities in a physics course. […]
Anno XXXIII - n.2 - aprile/giugno 2000 Progettare e costruire un percorso didattico: esempi di schede
The paper describes a ‘planning sheet’ format for teachers who wish to plan their teaching along the lines that will be increasingly required in Italian schools. Although the exemplary sheets are filled up for teaching electric circuits, the format is flexible and adaptable to any planning need. […]
Anno XXXIII - n.1 - gennaio/marzo 2000 Rischi da radiazioni elettromagnetiche nelle scuole
The aim of the work is to provide a panoramic vision on electromagnetic radiation hazards, in school laboratories. Some procedures of prevention are also detailed with exposure limits and treshold values proposed by italian rules or international board, that can be used for didactical purposes also. […]
Anno XXXIII - n.1 - gennaio/marzo 2000 Come mettere in luce i vincoli fisici per la vita usando i numeri puri
A crude device for quantification shows how diverse aspects of distantly related organisms reflect the interplay of the same underlying physical factors […]
Anno XXXIII - n.1 - gennaio/marzo 2000 Confronto fra due apparecchiature commerciali per la misura della velocità della luce
In the research shown in this article the speed of the light in the air was determined by two different methods and by the use of the instruments provided by Leybold for both the experiments. In both the experiments we indirectly measured the time taken by a light beam to cover fixed distance. […]
Anno XXXIII - n.1 - gennaio/marzo 2000 Un semplice contatore Geiger tascabile per α, β e γ
A simple pocket-size, battery operated Geiger counter is here described. It may be used in classroom to test low emission radioactive sources, or to detect background radiation. […]
Anno XXXIII - n.1 - gennaio/marzo 2000 Determinazione della densità dell’aria
We set a simple experiment, with didactic purpose, for the determination of the density of the air, applying the principle of Archimedes. The equipment required is very cheap and easy to be found. […]
Anno XXXIII - n.1 - gennaio/marzo 2000 Primi passi verso il Premio Nobel in Fisica
The international competition First Step to Nobel Prize in Physics is briefly presented to the Italian teachers. […]