What is a spring scale?

A spring scale is a type of weighing scale that measures weight by the force exerted on a spring. The scale works by hanging an object from the spring and measuring the distance the spring stretches or compresses. The scale is calibrated so that the amount of force required to move the spring a certain distance corresponds to the weight of the object. Spring scales are commonly used in kitchens, bathrooms, and other settings where precise measurements are not required. They are easy to use, portable, and relatively inexpensive. However, they may not be as accurate as electronic scales and may have limitations in terms of the range of weights they can measure.