![]() ![]() ![]() It will easily vibrate at those frequencies, and vibrate less strongly at other frequencies. The term "acoustic resonance" is sometimes used to narrow mechanical resonance to the frequency range of human hearing, but since acoustics is defined in general terms concerning vibrational waves in matter, acoustic resonance can occur at frequencies outside the range of human hearing.Īn acoustically resonant object usually has more than one resonance frequency, especially at harmonics of the strongest resonance. However, if a piece of metal is placed on a prong, the effect dampens, and the excitations become less and less pronounced as resonance isn't achieved as effectively.Īcoustic resonance is a phenomenon in which an acoustic system amplifies sound waves whose frequency matches one of its own natural frequencies of vibration (its resonance frequencies). Although the first tuning fork hasn't been hit, the other fork is visibly excited due to the oscillation caused by the periodic change in the pressure and density of the air by hitting the other fork, creating an acoustic resonance between the forks. One of the forks is being hit with a rubberized mallet. Experiment using two tuning forks oscillating at the same frequency. For a general description of resonance, see Resonance. For a general description of mechanical resonance in physics and engineering, see Mechanical resonance. This article is about mechanical resonance of sound including musical instruments. ![]()
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