Resonance describes the phenomenon of increased amplitude that occurs when the frequency of a periodically applied force or a Fourier component of it is equal or close to a natural frequency of the system on which it acts. When an oscillating force is applied at a resonant frequency of a dynamical system, the system will oscillate at a higher amplitude than when the same force is applied at other, non-resonant frequencies. Frequencies at which the response amplitude is a relative maximum are also known as resonant frequencies or resonance frequencies of the system.
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Some Examples of Resonance
Resonance, An object free to vibrate tends to do so at a specific rate called the object's natural, or resonant, frequency. This frequency depends on the size, shape, and composition of the object. Such an object will vibrate strongly when it is subjected to vibrations or regular impulses at a frequency equal to or very close to its natural frequency. This phenomenon is called resonance. Through resonance, a comparatively weak vibration in one object can cause a strong vibration in another.
Different Types of Resonance
To save this word, you'll need to log in. Violins made by the Italian masters Stradivari and Guarneri possess a quality of resonance that later violinmakers have never precisely duplicated. And you may have noticed how a particular note will start something in a room buzzing, as one of the touching surfaces begins to resonate with the note. Because of that, resonance and resonate —along with the adjective resonant —aren't always used to describe sound. For example, you may say that a novel resonates strongly with you because the author seems to be describing your own experiences and feelings. Examples of resonance in a Sentence the resonance of the singer's voice His story didn't have much resonance with the audience. Recent Examples on the Web The ascending trills in the cadenza of the adagio of the Brahms first piano concerto, each joined by the next and then prolonged with a touch of the pedal—just a little, nothing showy—had a resonance like the shimmering of the universe.
In sound applications, a resonant frequency is a natural frequency of vibration determined by the physical parameters of the vibrating object. This same basic idea of physically determined natural frequencies applies throughout physics in mechanics, electricity and magnetism, and even throughout the realm of modern physics. Some of the implications of resonant frequencies are:. It is easy to get an object to vibrate at its resonant frequencies , hard at other frequencies. A child's playground swing is an example of a pendulum , a resonant system with only one resonant frequency. With a tiny push on the swing each time it comes back to you, you can continue to build up the amplitude of swing. If you try to force it to swing at twice that frequency, you will find it very difficult, and might even lose teeth in the process!