Force Scale
Force Scale - Related Videos
02:41
pH Scale
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2020
Hydronium and hydroxide ions are present both in pure water and in all aqueous solutions, and their concentrations are inversely proportional as determined by the ion product of water (Kw). The concentrations of these ions in a solution are often critical determinants of the solution’s properties and the chemical behaviors of its other solutes. Two different solutions can differ in their hydronium or hydroxide ion concentrations by a million, billion, or even trillion times. A common means of...
06:45
Force Spectroscopy of Single Protein Molecules Using an Atomic Force Microscope
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Cited by 4 •
2019
We describe the detailed procedures and strategies to measure the mechanical properties and mechanical unfolding pathways of single protein molecules using an atomic force microscope. We also show representative results as a reference for selection and justification of good single protein molecule recordings.
03:13
Intermolecular Forces
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2020
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
08:00
Force and Acceleration
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2023
Source: Nicholas Timmons, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA The goal of this experiment is to understand the components of force and their relation to motion through the use of Newton's second law by measuring the acceleration of a glider being acted upon by a force. Nearly every aspect of motion in everyday life can be described using Isaac Newton's three laws of motion. They describe how objects in...
02:36
Electromotive Force
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2020
Electricity is generated by either electrons or ions flowing through a solution or a conducting medium. This flow of electrons or specifically electrical charge is defined as an electric current. When electrons move through a wire, they generate an electric current. It can be recalled that in a redox reaction, electrons are lost and gained. In the spontaneous redox reaction of zinc with copper, when zinc is immersed in a copper ion solution, a transfer of electrons from one substance to...
FAQs
An applied push or pull changes the length of an elastic element, and the scale relates that displacement to force through Hooke’s law. This relationship remains reliable only within the spring’s elastic limit, where the element returns to its original form after loading. Beyond that limit, the displayed value may no longer represent the applied force accurately.
Calibration establishes how a measured displacement corresponds to a force value in newtons. Without this conversion, the instrument may show movement without providing a dependable magnitude. Calibration also supports comparisons between measurements, allowing students, researchers, or engineers to judge whether different loads produce consistent readings under the same instrument conditions.
Alignment, measurement range, calibration, and the spring’s deformation limit all influence accuracy. Poor alignment can alter how the load acts on the elastic element, while using a scale outside its intended range can produce unreliable readings. Permanent deformation is especially serious because it changes the displacement-to-force relationship used for measurement.
A measured force can be compared with other forces acting on an object to examine equilibrium, the condition in which the relevant forces balance. The instrument can also record the force required to oppose or overcome friction. Comparing readings under different arrangements helps reveal how force changes when mechanical conditions change, without relying only on visual observation.
Force-scale readings allow researchers and engineers to characterize loads, compare materials, and evaluate mechanical systems. Measurements can show how much force a system experiences or requires under specified conditions. When readings are calibrated and the instrument remains within its working range, the results can help validate whether a mechanical design behaves as expected.
In physics investigations, measured force values can be related to an object’s motion and to the interactions producing that motion. Students can use the readings to compare applied forces, examine balanced and unbalanced situations, and connect observations with Newton’s laws. The instrument therefore links quantitative force measurements to real mechanical behavior rather than treating force as an abstract quantity.