Login
Communauté Vinci
Extérieur
Si votre nom d'utilisateur ne se termine pas par @vinci.be ou @student.vinci.be, utilisez le formulaire ci-dessous pour accéder à votre compte de lecteur.
Titre : | Impetus-Like Reasoning as Continuous with Newtonian Physics (2021) |
Auteurs : | Amy D. Robertson ; Lisa M. Goodhew ; Rachel Scherr ; Paula R. L. Heron |
Type de document : | Article |
Dans : | The Physics Teacher (3/59, March 2021) |
Article en page(s) : | p. 185-188 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Force ; Mécanique ; Newton, Isaac ; Physique |
Mots-clés: | Force d'impulsion |
Résumé : | Among the student ideas about forces discussed in the literature, perhaps the most commonly reported is the notion of an impetus force, or the belief that there is a force inside a moving object that keeps it going and causes it to have some speed. For example, Clement asked university students taking introductory mechanics to draw a free-body diagram for a coin that has been tossed upward. He found that students often drew an arrow in the direction of the coins motion, at a point midway between the initial toss and the turnaround point, sometimes providing reasoning that suggested that the arrow corresponds to a force from your hand or the force of the throw. Clement interpreted these responses as indicating that student[s] may believe that continuing motion implies the presence of a continuing force in the same direction, as a necessary cause of the motion. As another example, in a study conducted with undergraduate students at Johns Hopkins University, McCloskey, Caramazza, and Green asked students to draw the path a ball will follow after it exits the curved tubes pictured in Fig. 1. The authors found that students often drew curved trajectories for the ball exiting each tube, and they coined the term curvilinear impetus principle to describe students reasoning. They write that students reasoned as though an object constrained to move in a curved path acquires a curvilinear impetus that causes it to continue in a curved trajectory for some time after the constraints on its motion are removed. |
Disponible en ligne : | Non |
Exemplaires (1)
Cote | Support | Localisation | Section | Disponibilité |
---|---|---|---|---|
The Physics Teacher. 3/59 (March 2021) | Périodique papier | Louvain-la-Neuve | Etagère des revues | Prêt autorisé Disponible |