Resonance is a phenomenon that occurs when a system is subjected to an oscillating force with a frequency close to its natural frequency. At resonance, the system tends to oscillate at a higher amplitude than at other frequencies. This phenomenon is observed in mechanical systems, electrical circuits, and even in biological systems. In physics, resonance is a fundamental concept that explains why certain frequencies can cause dramatic effects, such as the collapse of a bridge under the right conditions or the amplification of sound in musical instruments. The term "resonance" comes from the Latin word "resonare," meaning "to resound." In Hebrew, resonance is translated as הרמוניה (harmonia) or תהודה (tehuda). In Spanish, it is resonancia, in French résonance, and in German Resonanz. Resonance plays a crucial role in various fields, including engineering, music, and telecommunications, where understanding and controlling resonant frequencies are essential for designing efficient and effective systems.