共振是一种常见的自然现象,声音的共振通常叫做共鸣。利用共振音叉演示声音的共鸣发出的声音太小,只有附近几位学生隐约听得到,效果很不理想,利用示波器把音叉发出的声波直观地显示在示波器的荧光屏上,使学生能亲眼看到声波的形状,效果很好。1实验器材示波器1台,功放机1台,话筒 Resonance is a common natural phenomenon. The resonance of a sound is usually called resonance. Resonance tuning forks demonstrate that the resonance of the sound produced by the sound is too small. Only a few students in the vicinity can hear it. The effect is not ideal. Use the oscilloscope to visually display the sound waves emitted by the tuning fork on the oscilloscope’s fluorescent screen so that students can see the sound waves. The shape is very good. 1 laboratory equipment, 1 oscilloscope, 1 amplifier, microphone