Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Energy Diagrams - I01:14

Energy Diagrams - I

5.1K
The dynamics of a mechanical system can be easily understood by interpreting a potential energy diagram. Since energy is a scalar quantity, the interpretation of the dynamics of the system becomes even simpler.
Take the example of a skater on a parabolic ramp. The potential energy at different points along the ramp will be proportional to the height of the ramp, which varies quadratically with the horizontal position on the ramp. As the skater moves down the ramp from the highest position,...
5.1K
Energy Diagrams - II01:10

Energy Diagrams - II

4.7K
Energy diagrams are important to understand the dynamics of a system. The topology of an energy diagram helps illustrate the equilibrium points of the system.
The point in the energy diagram at which the system’s potential energy is the lowest is known as the local minima. The system tends to stay in this position indefinitely unless acted upon by a net force. The slope of the potential energy diagram at the local minima is zero, indicating that zero net force is acting on the system. The...
4.7K
Potential Energy00:52

Potential Energy

38.7K
The energy stored by a structure and location of matter in space is called potential energy. For instance, raising a kettlebell changes its spatial location and increases its potential energy. Similarly, a stretched rubber band contains potential energy which, under certain conditions, can be converted into other forms of energy, such as kinetic energy.
Chemical bonds that form attractive forces between atoms also contain potential energy, called chemical energy. When a chemical reaction...
38.7K
Gravitational Potential Energy01:14

Gravitational Potential Energy

17.6K
Potential energy is not just a property of each object, but also a property of the interactions between objects in a chosen system. For each type of interaction present in a system, there is a corresponding type of potential energy. The total potential energy of the system is the sum of the potential energies of all the objects. Potential energy can be classified into two major categories: gravitational potential energy and elastic potential energy. The potential energy associated with a...
17.6K
Potential Energy due to Gravitation01:27

Potential Energy due to Gravitation

5.6K
Since gravitational force is a conservative force, the amount of work done to move an object between two points in the gravitational field in which it resides is independent of the path taken. Thus, similar to the gravitational field, a gravitational potential energy function can be defined, which depends only on spatial coordinates.
Consider a mass gravitationally bound to another object. For example, the Earth is gravitationally bound to the Sun’s gravitational field. The potential...
5.6K
Potential-Energy Criterion for Equilibrium01:16

Potential-Energy Criterion for Equilibrium

608
Potential energy or potential function plays an essential role in determining the stability of a mechanical system. If a system is subjected to both gravitational and elastic forces, the potential function of the system can be expressed as the algebraic sum of gravitational and elastic potential energy. If the system is in equilibrium and is displaced by a small amount, then the work done on the system equals the negative of the change in the system's potential energy from the initial to...
608

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Glutathione-responsive AP site captor Probe-NEt for anaplastic thyroid cancer: in vitro and in vivo experimental studies].

Zhonghua zhong liu za zhi [Chinese journal of oncology]·2026
Same author

[Inhalation toxicity assessment of silicon dioxide particles in Calu3 cells at the air-liquid interface].

Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases·2026
Same author

Crossover between solid-like and liquid-like behavior in supercooled liquids.

The Journal of chemical physics·2025
Same author

[The application of machine learning in tuberculosis surveillance, early warning, and evaluation of intervention strategies].

Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi·2025
Same author

Dynamical classification of metallic supercooled liquids: Critical cooling rates and entropic signatures.

The Journal of chemical physics·2025
Same author

[Symptoms and impact on quality of life of patients with Ménière's disease].

Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery·2025
Same journal

Erratum: Low-dimensional model for adaptive networks of spiking neurons [Phys. Rev. E 111, 014422 (2025)].

Physical review. E·2026
Same journal

Disentangling the effects of many-body forces on depletion interactions.

Physical review. E·2026
Same journal

Charge transport and mode transition in dual-energy electron beam diodes.

Physical review. E·2026
Same journal

Optimization of multisite reactions in complex compartmentalized media.

Physical review. E·2026
Same journal

Origin of geometric cohesion in nonconvex granular materials: Interplay between interdigitation and rotational constraints enhancing frictional stability.

Physical review. E·2026
Same journal

Interaction of walkers with a standing Faraday wave.

Physical review. E·2026
See all related articles

Related Experiment Video

Updated: Aug 13, 2025

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

17.7K

Angell plot from the potential energy landscape perspective.

D M Zhang1, D Y Sun2,3, X G Gong1,3

  • 1Key Laboratory for Computational Physical Sciences (MOE), Institute of Computational Physics, Fudan University, Shanghai 200433, China.

Physical Review. E
|January 21, 2023
PubMed
Summary
This summary is machine-generated.

A new thermodynamic model explains the Angell plot using potential energy landscapes (PELs). It reveals a linear relationship between effective barrier (ω) and width (σ²) for glasses, distinguishing fragile and strong types.

More Related Videos

Contrast-Matching Detergent in Small-Angle Neutron Scattering Experiments for Membrane Protein Structural Analysis and Ab Initio Modeling
10:27

Contrast-Matching Detergent in Small-Angle Neutron Scattering Experiments for Membrane Protein Structural Analysis and Ab Initio Modeling

Published on: October 21, 2018

12.5K
Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering
07:19

Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering

Published on: November 5, 2018

12.8K

Related Experiment Videos

Last Updated: Aug 13, 2025

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

17.7K
Contrast-Matching Detergent in Small-Angle Neutron Scattering Experiments for Membrane Protein Structural Analysis and Ab Initio Modeling
10:27

Contrast-Matching Detergent in Small-Angle Neutron Scattering Experiments for Membrane Protein Structural Analysis and Ab Initio Modeling

Published on: October 21, 2018

12.5K
Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering
07:19

Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering

Published on: November 5, 2018

12.8K

Area of Science:

  • Thermodynamics
  • Condensed Matter Physics
  • Materials Science

Background:

  • The Angell plot is a key tool for classifying glass behavior based on relaxation times and temperature.
  • Understanding the underlying physics of glass transitions, particularly the distinction between fragile and strong glasses, remains a challenge.

Purpose of the Study:

  • To develop a thermodynamic model explaining the physics behind the Angell plot.
  • To establish a general relationship between relaxation time and temperature within the potential energy landscape (PEL) framework.
  • To identify parameters that can differentiate between fragile and strong glass behaviors.

Main Methods:

  • Developed a thermodynamic model based on the potential energy landscape (PEL).
  • Separated the barrier distribution in PELs into Gaussian-like and power-law components.
  • Utilized two characteristic parameters: effective barrier (ω) and effective width (σ) of a Gaussian-like distribution.

Main Results:

  • Obtained a general relationship between relaxation time and temperature.
  • Successfully fitted a wide range of experimental and molecular-dynamics data using the model.
  • Discovered a simple linear relationship between the fitted ω and σ² for all glasses.
  • Demonstrated clear separation of fragile and strong glasses in the ω-σ² plot.

Conclusions:

  • The study provides a physics-based explanation for the Angell plot.
  • The effective barrier (ω) and effective width (σ²) parameters are crucial for characterizing glass properties.
  • Glassy states are confined to a specific region within the potential energy landscape (PEL).