Spring systems are mechanical devices that store and release energy through the compression or extension of a spring. They are commonly used in various applications, such as in automobiles for suspension systems, in furniture for comfort, and in toys for movement. The basic principle involves Hooke's Law, which states that the force exerted by a spring is proportional to its displacement from the rest position. These systems can be classified into different types, including compression springs, tension springs, and torsion springs. Each type serves a specific purpose based on how they are designed to handle forces. Spring systems are essential in engineering and design, providing flexibility and support in countless products.