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Nymn
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If two metal objects hit, do the objects have to vibrate to make a sound? Or can the air itself vibrate with the sound?
The collision itself will push air, creating a sound like thunder or clapping hands. The objects themselves need not vibrate.HallsofIvy said:If the objects did not vibrate, what would cause the air to vibrate?
Vibration is a mechanical oscillation or movement that occurs around a fixed point or equilibrium. It can be a regular or irregular motion and can occur in both solid and fluid materials.
Vibration can be caused by various factors such as external forces, mechanical imbalances, and natural frequencies of an object. It can also be triggered by internal sources such as friction, electrical or magnetic fields, and sound waves.
Vibration is typically measured using a device called a vibrometer or an accelerometer. These devices measure the amplitude, frequency, and intensity of the vibration and provide data in the form of graphs or numerical values.
Vibration can have both positive and negative effects. In some cases, it can be useful for tasks such as transportation, communication, and energy production. However, excessive or prolonged vibration can cause damage to structures, machinery, and human health.
Vibration can be controlled by various methods such as isolation, damping, and balancing. Isolation involves using materials or structures that can absorb or reduce the vibration, while damping involves adding materials to reduce the energy of the vibration. Balancing involves adjusting the mass distribution of an object to minimize vibration.