O tubo de Rubens como recurso didático no ensino de ondas

Abstract

Recognizing the importance of teaching physics in basic education and the low interest of students, in the form in which the contents of this course are being taught, this project is proposed to implement teaching strategies focusing on experimental activities, to instigate curiosity and the motivation of the students, so that the concepts already acquired by them could develop into a more systematic knowledge and significant in light of meaningful Learning of David Ausubel. Rubens tube experiment was designed as a teaching tool to support teaching in context of the wave, in high school. Rubens tube was used as a learning object to demonstrate the occurrence of the phenomenon of stationary waves that are formed from superpositions of waves in sound tubes. With this object was calculated the speed of sound in the liquefied petroleum gas (LPG) and compared with the existing literature. The classes were taught in a class with students of the third year of high school State College Ariston Gomes da Silva City Iporá Goiás. To carry out the project it was necessary to raise the students' prior knowledge through a diagnostic test before teaching the content, and then

checked whether the students modified the initial knowledge with the application of a post- test. The methodology was through classes taught with the use of film, slide show on Power- Point, use of simulators and simple experiments with everyday materials and use of Rubens

Tube previously built. The data analysis was done comparing the two tests verifying that the prior knowledge of the students have been modified and that the use of Rubens tube helped students understand the phenomena related to standing waves.