Force Resolution
Force Resolution - Related Videos
10:25
Sub-nanometer Resolution Imaging with Amplitude-modulation Atomic Force Microscopy in Liquid
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Cited by 39 •
2016
We present a method for achieving sub-nanometer resolution images with amplitude-modulation (tapping mode) atomic force microscopy in liquid. The method is demonstrated on commercial atomic force microscopes. We explain the rationale behind our choices of parameters and suggest strategies for resolution optimization.
05:31
Sample Preparation for Single Virion Atomic Force Microscopy and Super-resolution Fluorescence Imaging
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Cited by 4 •
2014
The attachment of virions to a surface is a requirement for single virion imaging by Super-resolution fluorescence imaging or atomic force microscopy (AFM). Here we demonstrate a sample preparation method for controlled adhesion of virions to glass surfaces suitable for use in AFM and super-resolution fluorescence imaging.
10:15
Atomic Force Microscopy Imaging and Force Spectroscopy of Supported Lipid Bilayers
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Cited by 34 •
2015
We describe a protocol for preparation of supported lipid bilayers and its characterization using atomic force microscopy and force spectroscopy.
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...
FAQs
The component magnitudes depend on the angle between the force and the selected axes. For perpendicular horizontal and vertical axes, one component is found with a cosine relationship and the other with a sine relationship, depending on which axis is used as the angle reference. Changing the force’s direction therefore changes how much of its effect acts along each direction.
Axes should be chosen to match the important directions in the problem, such as horizontal and vertical directions or surfaces that constrain motion. Convenient axes separate the force effects into simpler directional contributions. Although the selected components may change when the axes change, their vector combination still represents the same original force.
Resolving forces allows the net effect to be evaluated separately along each chosen direction. In an equilibrium problem, the component effects must balance in the relevant directions. When the forces do not balance, the remaining component contributes to acceleration along that direction. This separation clarifies which part of a force produces motion or maintains stability.
First, identify the force’s direction and select axes suited to the geometry of the problem. Next, determine the angle between the force and the chosen reference axis. Apply the appropriate sine and cosine relationships to obtain each component, then assign directions or signs. Finally, analyze the components separately for equilibrium, acceleration, friction, or tension.
For an inclined plane, resolving forces into directions aligned with and perpendicular to the surface makes the geometry easier to analyze. The separate components can then be considered when examining motion, friction, or the forces needed for balance. This approach avoids treating the entire force as though its effect acts in only one direction.
It is useful whenever a force produces different effects in different directions. Engineers and researchers can identify directional contributions, estimate the forces required to maintain stability, and predict how a system may move. In experimental modeling, separating the measured or applied force into components helps connect the observed behavior with the relevant physical directions.