colorful music bottle homemade music bottle vocal music bottle scientific experiment technology small production teacher xing

Product Name: Colorful Music Bottle

Item No.:KX210

Package: Packaging bag

Product dimensions: 25*6*9 cm

Number of boxes to be packed: 500 PCS

Box Size: 60*40*55CM

 Objects produce sound when vibrating, and this sound is categorized into ultrasonic waves with high vibration frequencies per unit time, audible sounds in the infrasonic range, and sound that humans can hear at 2000–20000 Hz. There are many sounds with different frequencies between 2000 and 20000, similar to FM radio broadcasting.
DO RE MI FA SO LA SI is the same. The more things in the same cup, the heavier one becomes, the slower the vibration, and the lower the sound we hear. Conversely, the clearer it is, the higher the tone.
Opening the piano, zither, aluminum piano, and guitar is all the same; the high strings are thin while the low strings are thick—this is due to the different vibration frequencies.
Principles and Exploration:
1. The pitch depends on the vibration frequency of the sound source—the number of cycles an object completes in one second. Its unit is hertz (HZ). One hertz means one vibration per second. The faster the object vibrates or the higher the vibration frequency, the higher the pitch. The slower the object vibrates or the lower the vibration frequency, the lower the pitch.
2. The higher the air volume in the test tube, the lower the pitch. The less air in the test tube, the higher the pitch.
3. When we tap different test tubes, the tones produced are different, resulting in distinct sounds, which form a music bottle with varying pitches.