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Friction

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding or grinding against each other. Types of friction include dry, fluid, lubricated, skin, and internal – an incomplete list. The study of the processes involved is called tribology, and has a history of more than 2,000 years.

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History & Applications

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Overview

Types

History

Dry friction

Coefficient of friction

Sources of friction

Breakdown of the Coulomb model

Dry friction and instabilities

Friction at the nanoscale

Fluid friction

Skin friction

Internal friction

Radiation friction

Other types of friction

Friction reduction

Applications

Advanced semantic analysis

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Map overview Semantic statistics

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Friction

Nodes168
Edges167
Triples206
Avg. degree1.99
Density0.011905
Components1

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Friction

Top relations

related to history · 20
Friction → Amonton's, Amontons, Aristotle, Bernard Forest, Bélidor, Elder, Guillaume Amontons, John Theophilus Desaguliers, Leonardo, Leonhard Euler, Many, Microscopic, Pliny, The, Themistius, These, They, This, Vinci, Vitruvius
related to External links · 12
Friction → Archived, Chemistry, Coefficient, Coefficients, CRC Handbook, Encyclopædia Britannica, Mechanics, New South WalesValues, PhysicsCoefficients, University, Vol, Wayback Machine
is a · 11
Friction → case of fluid friction where a fluid separates two solid surfaces, case of fluid friction where a lubricant fluid separates two solid surfaces.Skin friction is a component of drag, empirical measurement, force resisting motion between the elements making up a solid material while it undergoes deformation, force resisting the relative motion of solid surfaces, force that opposes the relative lateral motion of two solid surfaces in contact, force that prevents a car wheel from slipping as it rolls on the ground, particularly dangerous condition arising due to varying friction on either side of a car.Road texture affects the interaction of tires and the driving surface, particularly dangerous condition arising due to varying friction on either side of a car.Road texture affects the interaction of tires and the driving surface.MeasurementA tribo…, physical property observed from the forces acting on a belt wrapped around a pulley, product of the inter-surface shear stress and the contact area
related to Breakdown of the Coulomb model · 11
Friction → Bowden, Coulomb, Despite, Even, It, Painlevé, Some, Tabor, The, The Coulomb, Though
related to Static friction · 9
Friction → Amonton, Any, Coulomb, For, However, Static, The, These, When
related to Dry friction and instabilities · 8
Friction → Adams, Dry, George, In, João Arménio Correia Martins, Martins, The, These
related to Transportation · 8
Friction → Automobile, Disk, Frictional, In, Incidentally, Rail, Road, Since
related to Types · 8
Friction → Dry, Figure, Fluid, Internal, Lubricated, Skin, There, With
related to Fluid friction · 7
Friction → All, Fluid, For, In, The, This, Thus
related to Radiation friction · 7
Friction → As, Einstein, He, Hence, However, The, We

Important terminology Word statistics

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Important terminology

force surfaces coefficient surface static sliding two contact frictional coulomb kinetic displaystyle normal fluid dry motion heat materials relative energy

Entity relationships Subject–Predicate–Object triples

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SubjectPredicateObjectConfidenceSrc
Frictionis aforce resisting the relative motion of solid surfaces0.90text
Frictionis aforce that opposes the relative lateral motion of two solid surfaces in contact0.90text
Frictionis acase of fluid friction where a lubricant fluid separates two solid surfaces.Skin friction is a component of drag0.90text
Frictionis aproduct of the inter-surface shear stress and the contact area0.90text
Frictionis aforce that prevents a car wheel from slipping as it rolls on the ground0.90text
Frictionis aempirical measurement0.90text
Frictionis acase of fluid friction where a fluid separates two solid surfaces0.90text
Frictionis aforce resisting motion between the elements making up a solid material while it undergoes deformation0.90text
Frictionis aphysical property observed from the forces acting on a belt wrapped around a pulley0.90text
Frictionis aparticularly dangerous condition arising due to varying friction on either side of a car.Road texture affects the interaction of tires and the driving surface.MeasurementA tribo…0.90text
Frictionis aparticularly dangerous condition arising due to varying friction on either side of a car.Road texture affects the interaction of tires and the driving surface0.90text
an inclined planeinstance ofso it can be treated as simply a reaction.If the object is on a tilted surface0.80text

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