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A Hook gauge evaporimeter is a precision instrument used to measure changes in water levels due to evaporation. [1] It is used to precisely measure the level of a free water surface as an evaporation pan or a tank.
It consists of a spring fixed at one end with a hook to attach an object at the other. [1] It works in accordance with Hooke's Law, which states that the force needed to extend or compress a spring by some distance scales linearly with respect to that distance. Therefore, the scale markings on the spring balance are equally spaced.
A decimal balance uses the lever in which the arm for weights is 10 times longer than the arm for weighted objects, so that much lighter weights may be used to weigh heavy object. [11] Similarly a centesimal balance uses arms in ratio 1:100. For a simple pan balance to be in equilibrium, the fulcrum must be offset from the lever arm.
In physics, Hooke's law is an empirical law which states that the force (F) needed to extend or compress a spring by some distance (x) scales linearly with respect to that distance—that is, F s = kx, where k is a constant factor characteristic of the spring (i.e., its stiffness), and x is small compared to the total possible deformation of the spring.
Pan head fasteners: Pan head fasteners combine a slightly flattened top with a larger bearing surface, offering a streamlined appearance for aesthetic applications. Socket head fasteners: Designed for high torque applications, socket head fasteners are driven with a hex key, reducing the risk of cam-out.
An instrument used to measure the proper acceleration of a body irrespective of other forces. acoustics The branch of physics dealing with the production, transmission, and effects of sound. adhesion adhesion is what makes things stick together. It's the force that allows tape to stick to a surface or glue to hold two objects together. Contrast ...
An evaporation pan is used to hold water during observations for the determination of the quantity of evaporation at a given location. Such pans are of varying sizes and shapes, the most commonly used being circular or square. [3] The best known of the pans are the "Class A" evaporation pan and the "Sunken Colorado Pan". [4]
Base - The base rests underneath the weighing pan and can usually be customised to fit on a workbench or set up with tripod legs. Beams - The three beams on the balance are used to set the level of precision, with each beam working at different increments (generally 1-10 grams, 10 grams and 100 grams). When using the triple beam balance, it is ...