![]() ![]() Pushing a person in a swing in time with the natural interval of the swing (its resonant frequency) will make the swing go higher and higher (maximum amplitude), while attempts to push the swing at a faster or slower tempo will result in smaller arcs. ![]() One familiar example is a playground swing, which acts as a pendulum. Resonance occurs when a system is able to store and easily transfer energy between two or more different storage modes (such as kinetic energy and potential energy in the case of a pendulum). ![]() At these frequencies, even small periodic driving forces can produce large amplitude oscillations, because the system stores vibrational energy. Frequencies at which the response amplitude is a relative maximum are known as the system’s resonant frequencies, or resonance frequencies. This created a third resonant field of greater energy and that cracks the wine glass.įor you science buffs: In physics, resonance is the tendency of a system to oscillate with greater amplitude at some frequencies than at others. What causes that to happen? The frequencies of the wine glass were perfectly pitched or perfectly oscillated with the sound frequency of the note that the singer was holding. Think of it as the singer and wine glass shattering scenario. Let’s look at the energy aspect of what has happened. It can upset you especially when it is one of your most favorite pieces. Sometimes a stone or crystal just suddenly breaks. ![]()
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