Sound | Properties, Types, & Facts | Britannica
2024年12月13日 · Sound, a mechanical disturbance from a state of equilibrium that propagates through an elastic material medium. A purely subjective, but unduly restrictive, definition of sound is also possible, as that which is perceived by the ear. Learn more about the properties and types of sound in this article.
Sound - Wikipedia
In physics, sound is a vibration that propagates as an acoustic wave through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain. [1]
What Is Sound? Vibration and the Propagation of Sound - BYJU'S
In physics, the sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. Read More: Forms of Energy. After understanding what is sound, let us study the characteristics of the sound wave.
The Science of Sound - NASA
What's the science of sound? and the speed of sound are key to understanding how X-59 will quiet the boom. Waves are created when energy is transferred through a medium like water or air. There are two types of waves, transverse and longitudinal (sometimes called pressure or compression waves).
The Nature of Sound – The Physics Hypertextbook
Sound is a longitudinal, mechanical wave. Sound can travel through any medium, but it cannot travel through a vacuum. There is no sound in outer space. Sound is a variation in pressure. A region of increased pressure on a sound wave is called a compression (or condensation).
Sound - The science of waves, how they travel, how we use them
2023年7月23日 · In short, there are two different aspects to sound: there's a physical process that produces sound energy to start with and sends it shooting through the air, and there's a separate psychological process that happens inside our ears and brains, which convert the incoming sound energy into sensations we interpret as noises, speech, and music. We ...
It’s the branch of science concerned with the physical features of sound as it relates to the psychologic and physiologic aspects of the sense of hearing in the normal hearing ear. What is sound? It’s the wave that is created by vibrating objects and propagated through an elastic medium from one location to another. vibration of human vocal cord.
17: Sound - Physics LibreTexts
Sound is a disturbance of matter (a pressure wave) that is transmitted from its source outward. Hearing is the perception of sound. Sound can be modeled in terms of pressure or in terms of displacement of molecules. The human ear is sensitive to frequencies between 20 Hz and 20 kHz.
The Nature of Sound - Summary – The Physics Hypertextbook
As a longitudinal wave, sound is a rapid variation in pressure that propagates. Regions of above normal pressure (regions under compression) are called compressions or condensations. Regions of below normal pressure (regions under tension) are called rarefactions or dilations. Sound is produced by small and rapid pressure changes.
Sound: Definition, Types, Characteristics & Frequencies
2020年12月28日 · Sound is a type of mechanical wave or an oscillation of matter. When a sound wave propagates through a medium, such as air, it does so by causing the air molecules to vibrate, which causes changes in air pressure. The speed of sound in air is around 343 m/s but can vary with temperature.