Force Transmission
Force Transmission - Related Videos
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...
03:00
Intermolecular vs Intramolecular Forces
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2020
Intermolecular forces (IMF) are electrostatic attractions arising from charge-charge interactions between molecules. The strength of the intermolecular force is influenced by the distance of separation between molecules. The forces significantly affect the interactions in solids and liquids, where the molecules are close together. In gases, IMFs become important only under high-pressure conditions (due to the proximity of gas molecules). Intermolecular forces dictate the physical properties of...
09:23
Using Extraordinary Optical Transmission to Quantify Cardiac Biomarkers in Human Serum
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Cited by 2 •
2017
This work describes a nanoimprinting lithography method to fabricate high-quality sensing arrays that work on the principle of extraordinary optical transmission. The biosensor is low-cost, robust, easy to use, and can detect cardiac troponin I in serum at clinically relevant concentrations (99th percentile cutoff ∼10-400 pg/mL, depending on the assay).
FAQs
The geometry of connected members determines how applied loads divide among supports, joints, shafts, cables, gears, and contact surfaces. Constraints, such as fixed or movable connections, establish the available reactions and restrict motion. Engineers therefore examine the arrangement and boundary conditions before evaluating internal stresses, deformation, or the resulting motion of each component.
Mechanical advantage changes the relationship between an applied input and the resulting output force or motion. Gears can transmit force through rotational contact, shafts can carry torque, and cables can convey tension along a defined path. These arrangements help engineers produce controlled motion or support loads, while friction and geometry influence the efficiency and transmitted response.
Friction can resist relative motion at contact surfaces and alter the force required for operation. Torque describes the rotational effect transmitted through shafts or other components, while deformation shows how members change shape under load. Considering all three helps engineers distinguish ideal force paths from actual behavior and identify conditions that may reduce performance or contribute to failure.
A useful analysis begins by identifying the applied loads, connected components, joints, supports, and contact surfaces. Engineers then trace possible force paths, determine reactions and internal stresses, and evaluate deformation, friction, and torque where relevant. The predicted behavior guides decisions about component dimensions and materials, followed by checks for safe and reliable operation under the intended loading.
The analysis should account for whether loading is static or dynamic, because the system may respond differently when forces change with time or motion. Geometry, material properties, constraints, friction, and component dimensions also affect the result. Evaluating these conditions helps predict load distribution, deformation, controlled motion, and potential failure before selecting or refining a design.
Engineers apply this analysis whenever connected parts must support loads or generate controlled motion. It informs the design of structural frames, vehicles, machinery, robotic systems, and other mechanisms by showing how forces move through their components. The resulting predictions support choices about materials and dimensions while helping balance efficiency, safety, reliability, and functional motion.