Spring scale

Example of spiral balancer for Sash window

A spring scale or spring balance is a type of weighing scale. It consists of 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 can not measure mass, only weight.

单词	Spring scales
释义	Spring scales 原声例句 SciSHow 快问快答小科普 There are balancing scales, like you might stand on at a doctor’s office, or spring scales, like the ones you might use to weigh fruit in a grocery store. 有平衡秤，就像您站在医生办公室时使用的一样，或者弹簧秤，就像您在杂货店里用来称水果的秤一样。英语百科 Spring scale A spring scale or spring balance is a type of weighing scale. It consists of 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 can not measure mass, only weight.
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Spring scales

Spring scale