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我们知道.声音是由于发声体的振动产生的.实际中,发声体的类型是各式各样的,发出的声音也就千差万别.这说明声音有自己的特性.那么声音的特性有哪些?影响因素有哪些?它们之间有什么区别?情景1:蚊子和蝴蝶从耳旁飞过时,我们能清楚听到蚊子发出的“嗡嗡”声,却听不到蝴蝶发出的声音.它们的翅膀都在振动,为什么发声情况却不相同,这种不同又是什么呢?实验1:用弹性塑料片分别以快慢不同的速度来拨动书页,会发现快速拨动时,声音较尖.在物理学中,音调是指声音的高低.通过实验,我们可以得出结论:音调高低取决于发声物体振动的快慢,即声源振动的频率.声源振动的频率越高,则声音的音调越高,声源振动的频率越低,则声音的音调越
We know that the sound is generated by the vibration of the sounding body. In practice, the type of sounding body is various, and the sound is different, which shows that the sound has its own characteristics. So what are the characteristics of the sound? What are the factors and what is the difference between them? Scenario 1: When mosquitoes and butterflies flew over their ears, we could clearly hear the “buzzing” sounds of mosquitoes, but they could not hear the sounds of butterflies. Wings are vibrating, why the sound situation is not the same, what is the difference? Experiment 1: Use different pieces of elastic plastic film at different speeds to dial the page, you will find the fast toggle, the sound is more sharp. In physics, the pitch refers to the level of the sound.According to the experiment, we can conclude that the pitch depends on the vibration speed of the sounding object, that is, the frequency of the vibration of the sound source.The higher the frequency of the sound source vibration, the more the sound pitch High, the lower the frequency of vibration of the sound source, the more the tone of the sound