Question

What does a spring balance measure? How would you demonstrate the principle of which it works?​

Answer 1

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* A spring balance measures the weight of an object by opposing the force of gravity acting with the force of an extended spring.

Answer 2

Answer:

A spring balance is used to measure the weight of the body with in the elastic limits of its spring. Spring balance works on the principle of Hook's law. Hooke's law to say that the strain (deformation) of an elastic object or material is proportional to the stress applied to it.

Spring balance is used to measure the weight of the object. When a load is hung on the spring, it stretches and the spring's extension is proportional to the weight of the object. The working principle of the spring balance is Hooke's law which is F=−kx.