What is a spring scals?

A spring scale is a device used to measure force or weight by utilizing Hooke's law, which states that the force exerted by a spring is proportional to its extension or compression. It typically consists of a spring fixed at one end with a hook or platform at the other, where the object being measured is attached. As weight is applied, the spring stretches, and the scale provides a reading on a calibrated scale, often in units like newtons or pounds. Spring scales are commonly used in various applications, including education, manufacturing, and laboratories.