What instrument is typically used to measure force?

The instrument typically used to measure force is the Newton meter, also known as a spring scale. This device operates based on Hooke's Law, which states that the force exerted by a spring is directly proportional to the distance it is stretched or compressed from its rest position. When a force is applied to the Newton meter, it stretches the spring inside, and the scale displays the force measurement in newtons.

This is essential in physics because force is a fundamental quantity that can affect motion and other physical phenomena. Understanding how to measure force accurately is critical in experiments and practical applications, making the Newton meter an indispensable tool in both educational settings and professional labs. Other instruments, such as a caliper or ruler, are designed for measuring lengths or dimensions, and a thermometer measures temperature, none of which can quantify force directly as the Newton meter can.