Spring forces are the forces exerted by a spring when it is compressed or stretched. According to Hooke's Law, the force exerted by a spring is directly proportional to the distance it is stretched or compressed from its rest position. This means that the more you stretch or compress a spring, the stronger the force it exerts in the opposite direction. Springs are commonly used in various applications, such as in mechanical devices, suspension systems, and toys. They help absorb shock, store energy, and provide resistance. Understanding spring forces is essential in fields like engineering and physics, where they play a crucial role in designing systems that rely on elasticity.