The Physics of Sound

Introduction Sounds emitted from speakers are very common and are considered to be common because they came to be incorporated into everyday life. When you live with inventions such as television, telephone, radio, it rarely gives you opportunities to have only natural sounds. However, few people know the physics related to that technology. Therefore, even if the band is far away, you can listen to music in the living room. In this article, we will learn and explain the physics and dynamics behind the speaker - electromagnetism and hydrostatics.

Waves: There are various kinds of waves. What I described in this article deals with sound physics. In our daily life, we listen to the surrounding environment with our ears. They are one of the best receptors for sounds with an auditory threshold of approximately 1 x 10 12 watts / m 2. There are two different types of waves; they are transverse waves and compression waves. What is mentioned in this article is a compression wave. - Waves are very wave everywhere. But what makes a wave a wave? We usually describe what features, attributes, or behaviors all phenomena of waves share. A way to draw waves in such a way that you can understand the fundamental nature and quality of waves. Waves can be described as interference propagating from one place to another through the medium. Consider a nerve wave as an example of a wave

Physical ultrasound is a sound wave with a higher audible frequency than humans. (Ultrasonic physics and instrumentation 111). The wavelengths are shorter than the audible sounds, and these waves can be directed to narrow light rays to image soft tissue. Like audible sound waves, ultrasound has a traveling medium and must be interfered. In addition, they are very similar to light and can be reflected, refracted, and focused. Generally, the ultrasonic machinery market created by more than $ 77 million beat the competitors, including Siemens, Toshiba and Philips. V. Raja, president and CEO of GE Healthcare India, read a news article that Hyderabad government officials confiscated ultrasonic devices suspected of being illegally used to locate the birth of a new born child . In this article, I will present posters of GE Ultrasound Machine, packaged ultrasound equipment, and pregnant police officers.

Ultrasound is a sound wave whose frequency is higher than the upper limit of human hearing. The physical properties of ultrasound are not different from "normal" (auditory) tones, but humans can not hear the sound. Ultrasound device operates from 20 kHz to several gigahertz