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Lever

A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. A lever is a rigid body capable of rotating on a point on itself. On the basis of the locations of fulcrum, load, and effort, the lever is divided into three types. It is one of the six simple machines identified by Renaissance scientists. A lever…

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Types of levers

SeesawCrowbarScissorsPliersClaw hammer
18 related topics

Lever history

Autumn StanleyDigging stickEgyptBalance scaleAncient Egypt
11 related topics

Compound lever

Compound leverMalleusIncusStapesMiddle ear
8 related topics

Virtual work and the law of the lever

Generalized coordinateGeneralized force
2 related topics

Key facts & relationships

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Classification
Simple machine
Components
fulcrum or pivot, load and effort
Examples
see-saw, bottle opener, etc.

Topics to explore

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Overview

Etymology

Lever history

Force and levers

Types of levers

Compound lever

Law of the lever

Virtual work and the law of the lever

Advanced semantic analysis

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Map overview Semantic statistics

Lever

Nodes64
Edges63
Triples73
Avg. degree1.97
Density0.03125
Components1

How this topic connects Entity context

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Lever

Top relations

related to history · 14
Lever → Archimedean, Archimedes, Autumn Stanley, BC, Egypt, Give, Greek, In, In Mesopotamia, Iraq, That, The, The Greek, This
related to Types of levers · 13
Lever → Class, Class II, Class III, Effort, For, Fulcrum, It, Levers, Resistance, Since, The, This, With
related to Etymology · 8
Lever → English, English-language, Latin, Old French, Proto-Indo-European, The, The PIE, This
see also · 8
Lever → Applied, ArchimedesSimple, Assembly, Device, Equilibrium, Mechanical, Planes, Practical
is a · 7
Lever → application of the principle of virtual work, bar that pivots on a point or hinge, beam connected to ground by a hinge, mechanical advantage device, ratio of output force to input force, rigid body capable of rotating on a point on itself, simple machine consisting of a beam or rigid rod pivoted at a fixed hinge
related to External links · 7
Lever → Diracdelta, EnchantedLearning, Levers, Simple Lever, Simple Machines, Stephen Wolfram, Wolfram Demonstrations Project
related to Force and levers · 4
Lever → If, In, The, This
related to Virtual work and the law of the lever · 4
Lever → FA, FB, Let, The
related to Law of the lever · 3
Lever → As, The, Therefore
related to Compound lever · 2
Lever → Examples, The

Important terminology Word statistics

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Important terminology

fulcrum force output input effort mechanical advantage levers point load applied displaystyle greater simple distance one resistance ratio distances forces

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
LeverClassificationSimple machine1.00infobox
LeverComponentsfulcrum or pivot, load and effort1.00infobox
LeverExamplessee-saw, bottle opener, etc.1.00infobox
Leveris asimple machine consisting of a beam or rigid rod pivoted at a fixed hinge0.90text
Leveris arigid body capable of rotating on a point on itself0.90text
Leveris amechanical advantage device0.90text
Leveris abeam connected to ground by a hinge0.90text
Leveris aratio of output force to input force0.90text
Leveris abar that pivots on a point or hinge0.90text
Leveris aapplication of the principle of virtual work0.90text
Leverrelated to Compound leverExamples0.60section
Leverrelated to Compound leverThe0.60section

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    Min side: 3
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