on a spring scale that measures force, weight shows.
on a spring scale that measures force, weight shows.
on a spring scale that measures force a reading shows?
weight
spring scale









































a spring scale or spring balance or newton meter is a type of mechanical force gauge or weighing scale. it consists of a spring fixed at one end with a hook to attach an object at the other. it works by hooke's law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position. therefore, the scale markings on the spring balance are equally spaced. a spring scale cannot measure mass, only weight.
spring scale
spring scales have two sources of error that balances do not: the measured mass varies with the strength of the local gravitational force (by as much as 0.5% at different locations on earth), and the elasticity of the measurement spring can vary slightly with temperature. with proper manufacturing and setup, however, spring scales can be rated as legal for commerce. to remove the temperature error, a commerce-legal spring scale must either have temperature-compensated springs or be used at a fairly constant temperature. to eliminate the effect of gravity variations, a commerce-legal spring scale must be calibrated where it is used.
weighing scale