What Are Sound Waves?Inbunden, 2014. Pris 213 kr. Köp What Are Sound Waves? (9780778705222) av Robin Johnson på Bokus.comRobin Johnson
ultimately, the mechanical sound waves need a receiver in order to complete their journey. And although there may be a body present to receive the transmitted waves, because they are vibrating at such a high frequency
题目What can we infer about sound waves? A. They can travel through a vacuum. B. They travel faster in air than in water. C. They are a form of electromagnetic radiation. D. They need a medium to travel. 相关知识点: 试题来源: ...
In many ways, sound waves are similar to light waves. They both originate from a definite source, and can be distributed or scattered using various means. Unlike light, sound waves can only travel through a medium, such as air, glass, or metal. This means there’s no sound in space!
Sound waves are created by object vibrations and producepressure waves, for example, a ringing cellphone. The pressure wave disturbs theparticlesin the surrounding medium, and those particles disturb others next to them, and so on. The pattern of the disturbance creates outward movement in a wave...
百度试题 结果1 题目用正确的介词或副词填空。 A: What can you hear the background? B: The sound waves. 相关知识点: 试题来源: 解析 in:0f 反馈 收藏
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A. I was building a sandcastle. B. I was swimming. C. I was walking along the beach. D. I was having a picnic. 相关知识点: 试题来源: 解析 C。解析:题干中“I was walking along the beach when I heard the sound of waves.”说明听到海浪声时正在沿着海滩走。反馈 收藏 ...
You probably know that the sound you hear is the result of sound waves. But what are sound waves, exactly? What are their characteristics? And how do they work? What is a Sound Wave? A sound wave is caused by energy that moves through air, water or other materials as tiny vibrations....
The passage describes the sound of waves crashing on the shore. What kind of description is this? A. Sensory description B. Character description C. Setting description D. Action description 相关知识点: 试题来源: 解析 A。解析:对声音的描写属于感官描写,即 sensory description。感官描写可以增强文章...