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01:01
The Generation of Sound
In the classroom, two instruments were displayed on the table, and one student was holding a little hammer, all of which were for demonstrating the generation of sound in our lives. As he hit the metal instrument and moved it to where the ping-pong ball was, the magic happened. The ball began to vibrate, and the louder the sound, the wider the moving distance. From this, people can understand that sound is produced by vibration.
The footage was filmed by Mr. Chen, in Panlong, Kunming, Yunnan, on December 10, 2024.
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