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PRESENTATION on the topic: HARMONIC VIBRATION PPMG "DOBRI CHINTULOV" – Sliven Mariana Avramova - teacher of physics and astronomy The presentation is very applicable. The initial slides can be used in extracurricular activities with students who are not yet studying physics, as they very well represent the phenomenon of vibration in nature and in life. The following slides are related to part of the curriculum in physics and astronomy in 7th grade on the topic of "Mechanical Oscillations" and in 9th grade on the topic of "Harmonic Oscillations". Oscillation, as a type of movement, is described for students (as early as the 4th grade in Man and Nature), as a frequently observed movement in the world around us, with numerous examples - the leaves of trees, the wings of birds, sea waves. The study of oscillations in the school course is of cognitive importance due to the great application of this type of movement in science and technology, and their wide distribution in everyday life and nature. That is why there are many illustrations of different examples in the presentation. Through the images and animated models shown in the presentation, relatively easily, on the basis of good visibility, the main characteristic of the oscillation is formulated – its repeatability (periodicity). The introduction of the basic values characterizing the oscillation, with examples from everyday life and practice, stimulates the interest of students, their active participation in the class, and is a prerequisite for developing motivation to learn. The visual perception of animated and graphic models of harmonically oscillating bodies allows students to formulate the harmonic oscillation of bodies themselves. The wide use of the graphic method with very good visualization, provided by modern information technologies is a prerequisite for students to relatively quickly and correctly cope with the task assigned to them in class. The individual slides of the presentation follow the logic of the introduction of the physical quantities describing the harmonic oscillation and follow the structure in the course of the lesson. |
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