Pronunciation: [spɹˈɪŋ bˈaləns] (IPA) 
The word "spring balance" is spelled using the International Phonetic Alphabet (IPA) as /sprɪŋ bæləns/. The first part of the word is pronounced as /sprɪŋ/, with a voiced "s" sound and a short "i" followed by a velar nasal sound. The second part, "balance," is pronounced as /bæləns/ with a short "a" and a voiced "l" sound. A spring balance is an instrument that measures weight based on the extension of a spring.
A spring balance, also known as a spring scale, is a measuring device commonly used to determine the weight or the force exerted by an object. It consists of a coiled spring attached to a metal hook or a pointer, and a graduated scale that indicates the measurements in units of force, such as grams, kilograms, or newtons.
The spring balance operates on the principle of Hooke's law, which states that the force exerted by a spring is directly proportional to the displacement it undergoes. When an object is suspended from the hook of a spring balance, the spring stretches or compresses in response to the gravitational force acting on the object. The displacement of the spring is then converted into a measurement of force through the calibrated scale.
Spring balances are commonly used in various applications across different fields, including science laboratories, industries, and schools. They are particularly useful for weighing small to medium-sized objects or determining the tension in a string or wire. Some spring balances are portable and can be easily transported to different locations, making them suitable for fieldwork or outdoor activities.
In addition to their primary use in weight measurement, spring balances can also be utilized for educational purposes, enabling students to understand the concept of force, elasticity, and the relationship between mass and weight. They provide a convenient and cost-effective means of accurately measuring force or weight in a range of settings.
A contrivance for measuring weight or force by the elasticity of a spiral spring of steel.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "spring" in "spring balance" refers to the coiled metal strip used in the balance mechanism, which provides tension and enables the balance to measure weight. The term "balance" comes from the Middle English word "balaunce", ultimately derived from the Latin word "bilanx", meaning "two scales" or "two plates". The concept of a balance has been used for weighing purposes since ancient times, and the addition of a spring mechanism to create a spring balance was introduced later as a means of improving accuracy and convenience.
