Projeto e execução de um pêndulo para utilização em aulas práticas de cálculo e física

Abstract

Teaching practice is an activity that has evolved in recent decades, and the teachers constantly need new proposals to enhance your teaching process in the classroom. It is noticed that in the areas of physics and mathematics, sometimes the simple theoretical conception of a given phenomenon can limit the learning outcomes. There is therefore an opportunity to be met when it comes to significant experiments to integrate theory and practice, particularly in the areas of logical reasoning. This paper presents the design and implementation of a pendulum to be used in the classroom by teachers and students in conducting physics experiments, mathematics and other related disciplines. Initially the electronics design, mechanical and logical with programming using LabView software were developed. Then the testing of the separate parts of the device and the end were performed, it became testing equipment completely assembled. With the proposed system, the observation on the computer screen is possible, the position and velocity of near real-time. In addition the proposed system is able to aquisition these data and save them to type text files that can be opened in spreadsheets for further analysis. The experiments carried out at the end of the study show that the theoretical concepts of the oscillatory movement were proven by practical system. Through the equipment were raised the variables involved with the simple harmonic motion are: time, frequency, amplitude and speed. The results show is consistent with the theory of the pendulum.