The production of sound is an experiment report, an experiment on sound

Sound Generation and Propagation Sound is produced by vibrations. When you speak, you cause the air to vibrate, and the vibrations travel out, and as soon as someone's ears receive this vibration, they will hear you. Sound can travel in solids, liquids, or through air or other gases.

As the sound travels, the molecules in the air are squeezed together, then separated, then squeezed, and then separated, and so on, and so on, and sound waves are generated. The sound can be high-pitched or low-pitched. The pitch depends on the frequency of the sound (the number of vibrations per second).

The strength of the sound depends on the amount of vibration that produces the sound. If the vibration is large, the sound will be strong; The vibration is small and the sound is weak. The magnitude of sound is measured in decibels.

The noise generated by the drilling rig that repaired the road was more than 100 decibels. The brass horn in the picture, when the musician plays it, the air in the pipe vibrates, and the brass horn makes a sound. Brass pipes carry the sound so you can hear it.

In the cello pictured, when the musician pulls or plucks the string back and forth with the bow on the string, the string vibrates to make a sound. The guitar and violin also sound like this.

If you encounter such problems in the future, I suggest you go and search for them

The simplest is the tuning fork experiment: take a tuning fork and knock it to prove that the sound is transmitted by vibration.

When pouring water, as the water level rises, the air column in the bottle becomes shorter, and the tone emitted becomes higher, which is a simple experiment that you can do at home.

The above phenomena have one thing in common: the sounding body vibrates in the process of sounding, and 2) the rubber band vibrates and makes sound.

3) The drum or gong vibrates and makes a sound.

4) The tuning fork vibrates and makes a sound and stirs up waves on the surface of the water.

Therefore, the conclusion of the experiment is that sound is produced by the vibration of objects.

Middle School Physics Experiment – How is sound produced?

How sound is produced Purpose of the experiment To understand through experiments that sound is produced by the vibrations of objects. The focus of the experiment is to experience the process of sound production, and understand that "sound is produced by vibration" through observation and comparison. Experimental Difficulties Summarize the laws of sound from a variety of facts.

Experimental equipment: 1 drum, 1 steel ruler, 1 rubber band, 1 tuning fork, sink, water. Step 1Why do we press the drum so hard that the drum doesn't make a sound, but when we hit it lightly, it makes a sound?

2.Bend the steel ruler hard, the steel ruler does not make a sound, and gently plucked it can make a sound, why is this? 3.

Stretch the rubber band hard, the rubber band does not make a sound, and gently plucks it to make a sound, why is this? 4.If you gently touch the tuning fork that has been struck to the surface of the water, what will happen to the sparrow god on the surface of the water?

Press the drum surface without making a sound Hit the drum surface Sound Phenomenon 2: Bending the steel ruler does not make a sound Turning the steel ruler Sound Phenomenon 3: Stretching the rubber band does not make a sound Plucking the rubber band Making a sound Phenomenon 4:

The striking tuning fork touches the surface of the water, and the belt pie sees the surface of the water, and the test concludes that sound is produced by the object.

All of the above phenomena have one thing in common: the emitter vibrates in the process of sounding.

2) The rubber band vibrates and makes a sound.

3) The drum or gong vibrates and makes a sound.

4) The tuning fork vibrates and makes a sound and stirs up waves on the surface of the water.

Therefore, the conclusion of the experiment is that sound is produced by the vibration of objects.

Conclusion: Sound is produced by the vibration of the sound source.