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共振是物体做受迫振动时一种重要的物理现象,在人教版普通高中课程标准实验教科书物理选修3-4中,教材结合图像(如图1所示)对共振概念的描述如下:“可以看出:驱动力频率f等于系统的固有频率f_0时,受迫振动的振幅最大,这种现象叫做共振。”并且作了如下注释:“对于有阻尼的真实振动,当驱动力的频率略小固有频率时,系统的振
Resonance is an important physical phenomenon when the object is subjected to forced vibration. In the PEP general course curriculum standard experimental textbook physical elective 3-4, the textbook combined with the image (as shown in Figure 1) describes the concept of resonance as follows: ”It can be seen that when the driving frequency f is equal to the natural frequency of the system f_0, the amplitude of the forced vibration is the largest, which is called resonance.“ And made the following note: ”For the real vibration with damping, when the driving force The frequency is slightly smaller than the natural frequency when the system vibrates