Hit the tuning fork with a small hammer What is the phenomenon

Hit the tuning fork with a small hammer and you will hear the tuning fork make a "buzzing" sound. This is because the tuning fork starts vibrating when it is struck, and this vibration travels through the air or other medium, and it is this vibration that causes the sound we hear. At the same time, when you touch the tuning fork that is vibrating with your hand, you will feel some numbness in your hand, and this is because the vibration of the tuning fork is transmitted to your hand through contact.

Also, if you put a vibrating tuning fork into the water, you will observe that there are a large number of water droplets on the surface of the water that are stirred up. This is due to the vibration of the tuning fork causing vibrations on the surface of the water, which causes the water molecules to collide with each other, resulting in the formation of water droplets.

Press and hold the tuning fork that is vibrating with your hand, and the vibration of the tuning fork will stop immediately because your hand is preventing the tuning fork from vibrating. This is due to your hand putting enough pressure on the tuning fork to prevent it from continuing to vibrate. When your hand is removed, the tuning fork may start vibrating again because the pressure has been relieved.

Analysis Sound is produced by the vibration of an object; Vibration stops, vocalization stops Answer Solution: Experimental equipment: tuning fork.

small hammer; Experimental procedure: Hit the tuning fork with a small hammer to observe the vibration and vocalization of the tuning fork;

Press and hold the tuning fork with your hand and observe the vibration and vocalization of the tuning fork;

Experimental phenomenon: when the tuning fork is struck, the tuning fork makes a sound due to vibration; Press and hold the tuning fork with your hand, the tuning fork will vibrate and the sound will stop; Illustrates that sound is produced by the vibration of an object

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The loudness of the same tuning fork is different when the same tuning fork is struck with different amounts of force. The loudness of a sound refers to the strength of the sound. That's right. Because the same tuning fork is struck successively with different forces, the amplitude of the tuning fork will be different, so the loudness emitted will be different.

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Pitch refers to the height of the sound, loudness refers to the strength of the sound, loudness is mainly determined by the amplitude of the vibration of the sound source, the greater the amplitude, the louder.

Question: Use the same force to hit two tuning forks of different sizes, the larger tuning fork is more sound, is this right, this is wrong, the tone is different.

Because if you hit it with the same force, the loudness will be the same, but the tone will be different.

Hit with a rubber maceTuning forksThe fork of the strands, the fork of the strands: the soundLoudnessIt's changed.

Although the force of the blow is the same, the energy transferred to the tuning fork by rubber and iron is different.

Rubber has the effect of cushioning and shock absorption, and the tuning fork is knocked with rubber, and the tuning fork amplitude.

Small. Iron does not have the effect of cushioning and shock absorption, and when the tuning fork is knocked with iron, the tuning fork has a large amplitude.

Therefore, the loudness of the sound is different, the loudness of the iron tuning fork is large, and the rubber is smaller.

In the teaching of physics.

A tuning fork can be used to demonstrate mechanical waves.

nature. Tap the tuning fork to collect the spectrogram. The test found that:

When you tap the tuning fork, the amplitude of the tuning fork is small, the amplitude of the spectrogram is small, and the sound produced by the tuning fork is also small; When you hit the tuning fork again, the amplitude of the tuning fork is large, the amplitude of the spectrogram is large, and the sound made by the tuning fork is also loud at this time. Note: The loudness of the mechanical wave is related to the amplitude of the tuning fork mechanical wave.

The greater the amplitude, the greater the loudness; The lower the amplitude, the less loudness.

Striking a tuning fork creates an amplitude. Tuning forks are steel or aluminum alloy sounders in the shape of a "Y" that produce mechanical waves of a single wavelength. The mechanical waves emitted by the tuning fork when struck are so weak that they can only be heard clearly when they are brought to the ear.

Therefore, when the tuning fork is struck, it is pressed against a solid plane such as a table, and this plane acts as a resonance plate, which greatly increases the amplitude energy.

Various tuning forks produce pure tones of different wavelengths depending on their size and the length and height of the wishbones.

In physics teaching, tuning forks can be used to demonstrate the properties of mechanical waves. Tap the tuning fork to collect the spectrogram.

The loudness of the mechanical wave is related to the amplitude of the tuning fork mechanical wave. The greater the amplitude, the greater the loudness; The lower the amplitude, the less loudness.

Tuning forks are medically used to test a patient's hearing. In industry, a tuning fork level sensor is a level-controlling switch.

1) Through experiments, it is found that when the tuning fork is struck with a small hammer, the tuning fork will make a sound at the same time, and the table tennis ball will be bounced up at a certain angle, indicating that the sounding tuning fork is vibrating;

2) The vibration of the object can sometimes not be seen directly with the eyes, whether the object is vibrating can be judged by whether the table tennis ball is bouncing, and the height of the bouncing up can judge the magnitude of the vibration amplitude of the object.

3) Knock the tuning fork vigorously, its vibration frequency will not change, its vibration amplitude will increase, and the loudness will become larger

So the answer is: vibration; conversion method; No, it won't

That's right. Tap the same tuning fork with different forces, and the sound produced when you tap it lightly is low.

The pitch depends on how fast the sound-emitting object vibrates, i.e. how often the sound source vibrates. The higher the frequency of the vibration of the sound source, the higher the pitch of the sound; The lower the frequency of the vibration of the sound source, the lower the pitch of the sound.

Loudness is related to the amplitude of the vibration of the sound source, and the greater the amplitude of the sound source, the louder it is. When struck vigorously, the amplitude of the tuning fork is larger, and the loudness is greater. When tapping lightly, the tuning fork has less amplitude and less loudness.

The frequency of the tuning fork has nothing to do with the amplitude of the vibration, and striking hard can only make the sound louder, and the frequency will not change, which is the inherent property of the tuning fork itself.

It should be a low voice. The same tuning fork, the pitch is the same, the force is different, but the strength is different.

Hitting the tuning fork with different forces of different sizes will produce different loudnesses, and after striking, the sound of the tuning fork will gradually weaken, because the amplitude of the tuning fork is getting smaller and smaller.

When you sprinkle some confetti on the drum and hit the drum with a mallet, you can hear the sound of the drum and observe the vibration of the confetti, and according to the experimental phenomenon, it can be concluded that the object that makes the sound is vibrating.

The role of paper scraps in experiments is to transform small vibrations into easily observable phenomena.

If Xiao Ming increases the intensity of the drum during the experiment, what changes will the phenomena he hears and see? The sound is louder and the confetti vibrations are observed to be more vibrating.

Based on the changes in the experimental phenomena before and after, what conclusions can you draw?

The loudness of the sound is related to the amplitude of the vibration, and the greater the amplitude of the vibration, the louder the sound.