Cidepe

Function

Intended for experimental study, physics laboratory work, and conducting physics experiments on: Mechanical waves. Mechanical waves in air. Acoustics. Sound sources, sound, noise, and the physiological qualities of sound. What is sound? The frequency of a sound wave, high-pitched and low-pitched sounds. Auditory intensity, a physiological quality associated with sound amplitude. The difference between auditory intensity and the sound intensity of a wave. Waves only transport energy. Undesirable sounds, industrial noise. Sound reverberation. Echo and sound reverberation. Reverberation time. Standing sound waves in an open tube, resonance. Sound, a mechanical, longitudinal, and three-dimensional wave. What is meant by a closed sound tube and an open sound tube. Sound and wave interference, the standing wave in an open tube. Fixed points of constructive and negative interference, nodes and antinodes of the standing wave. The speed at which sound propagates in a mechanical medium. Timbre. Auditory intensity, with an observer intervening. The antinodes and nodes of the sound standing wave, listening inside an open sound tube. Determining the speed of sound in an open sound tube, Kundt's tube. The positions of the antinodes and nodes, indicated by cork dust, in an open tube. Standing sound waves in a closed tube, resonance. The speed at which sound propagates in a mechanical medium. Some factors that influence the speed of sound. The antinodes and nodes of the sound standing wave, listening inside the sound tube. Determining the speed of sound in a closed sound tube. The positions of the antinodes and nodes, indicated by cork dust, in a closed tube. The antinodes and nodes indicated by cork dust. The antinodes and nodes of the standing wave inside an open tube, with sensor and access key for software. Sound beats, the resultant of superimposed waves with a small difference in frequencies. Sound beat, constructive and destructive interference between two component waves. The sound resulting from the superposition of two sound waves. Measuring and calculating the average period and frequency of the beats. The ratio between the period of the beats and each of the periods of the component waves. How the period of the beats relates to the periods of the component waves. How the frequency of the beats relates to the frequencies of the component waves. The phenomenon of the beat, with sensor and access key for software. Mechanical vibrations. Wave motion. Figures in Chladni resonant plates, mechanics of vibrations. Observing antinodes and nodes in a square plate that oscillates under an exciting frequency. Listening to the sound emitted at different points on the oscillating plate. Observing antinodes and nodes in a circular plate that oscillates under an exciting frequency, etc.