What is a sound wave? A sound wave is the pattern of disturbance caused by the movement of energy traveling through a medium (such as air, water or any other liquid orsolidmatter) as it propagates away from the source of the sound. Sound waves are created by object vibrations and produc...
What is a Sound Wave? A sound wave is caused by energy that moves through air, water or other materials as tiny vibrations. For example, when an object like a cell phone vibrates, it creates a disturbance, which propagates as a sound wave. ...
What is a Sound Wave in Physics?In physiology, sound is produced when an object’s vibrations move through a medium until they enter an eardrum. In physics, sound is produced in the form of a pressure wave. When an object vibrates, it causes the surrounding air molecules to vibrate, init...
Sound is a pretty complicated thing. What Is a Sound Wave? First, let me talk about just sound in air. Of course you can have sound waves underwater (hello submarines) and even through solids. But think of air. At one level, air is made up of a whole bunch of tiny particles. Oh...
What is the frequency of a sound wave with a period of 0.02 seconds? A. 20 Hz B. 50 Hz C. 100 Hz D. 200 Hz 相关知识点: 试题来源: 解析 B。频率等于周期的倒数,周期为 0.02 秒,频率 = 1/0.02 = 50Hz,所以选择 B 选项。反馈 收藏 ...
What Type of Wave is Sound?So what type of wave is sound? Sound waves fall into three categories: longitudinal waves, mechanical waves, and pressure waves. Keep reading to find out what qualifies them as such. Longitudinal Sound Waves - A longitudinal wave is a wave in which the motion of...
A wave is a self-sustaining disturbance of a medium. It can be simply defined as a disturbance of some kind or a change in equilibrium. When this disturbance occurs in the ambient pressure or the density, we perceive the sound wave. Therefore, sound is the disturbance of ambient pressure,...
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Sound is a wave that is produced by objects that are vibrating. It travels through a medium from one point, A, to another point, B.
A 解析:细节理解题。由题干关键信息“sound wave vibrations”“the first two paragraphs”可快速定位至前两段,根据这两段的内容,尤其是第二段中的“Since the 1940s,scientists have investigated the technology of acoustic levitation, the use of sound wave vibrations to trap tiny things in midair.”可知...