A spring balance uses the extension of a spring to measure a force. Spring scales, such as are often found in supermarkets, are a common type of spring balance. The spring balance relies on Hooke's Law, which states that... More » Science Measurements

A spring balance is a weighing apparatus used in industries to measure the mass of different loads. It is also used in science experiments as a basic accelerometer. Spring balances are not legal for use in trade because ... More » Science Physics Motion & Mechanics

Digital scales use the strain gauge load cell to convert the force of a given weight to an electric signal. Unlike analog scales, digital ones give weights as an instant digital readout. More » Science Measurements
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Lock washers work by applying a spring force against the nut or bolt head. Different lock washers perform this function in slightly different ways, but the basic concept is to hold the nut and bolt in place. Some lock wa... More » Home & Garden Kitchen

Spring scales measure the magnitude of forces, most commonly weight, which is the downward force of gravity on an object. It works from the principle laid down by Isaac Newton in his third law of universal motion, that f... More » Science Measurements

Examples of different types of scales include spring scales, floor scales, platform scales and bench scales. Some more rudimentary scale types include equal-arm beam scales, pendulum scales and steelyard scales. More » Science Measurements

One kilonewton (kN) equals 224.81 pounds of force. Although the pound is used as a unit of both mass and force, a pound-force differs from a pound-mass. A pound-force is the force required to accelerate a mass of 1 pound... More » Science Measurements