Wikipedia:Vital articles/Level/5/Physical sciences/Basics and measurement#Area

{{Vital articles navigation/level 5/Physical sciences}}

Vital articles is a list of subjects for which Wikipedia should have corresponding high-quality articles. It serves as a centralized watchlist to track the status of Wikipedia's most essential articles. This is one of the sub-lists of the fifty thousand article Vital articles/Level 5 and is currently under construction.

{{Wikipedia:Vital articles 5/Labels}}

{{TOC left}}

{{clear}}

Quota 300 articles.

Total 334 articles.

class="wikitable sortable"
Class#Articles
{{Icon|GA}} GA4
{{Icon|B}} B36
{{Icon|C}} C142
{{Icon|LIST}} LIST1
{{Icon|FFA}} FFA1
{{Icon|DGA}} DGA4
{{Icon|Start}} Start123
{{Icon|Stub}} Stub28

=Basics and measurement=

{{Vital article count|334}}

Science basics

{{Vital article count|47}}

{{Div col|colwidth=15em}}

  1. {{Icon|B}} Science (Level 1)
  2. {{Icon|Start}} Academic discipline
  3. {{Icon|Start}} Interdisciplinarity
  4. {{Icon|C}} Analysis
  5. {{Icon|B}} Branches of science
  6. {{Icon|Start}} Formal science
  7. {{Icon|B}} Data science
  8. {{Icon|C}} Information science (Level 4)
  9. {{Icon|B}} Natural science
  10. {{Icon|C}} Classification
  11. {{Icon|Start}} Taxonomy
  12. {{Icon|C}} Data
  13. {{Icon|C}} Data analysis
  14. {{Icon|C}} Data sharing
  15. {{Icon|Start}} Error
  16. {{Icon|C}} Experiment (Level 4)
  17. {{Icon|B}} Blinded experiment
  18. {{Icon|C}} Forecasting
  19. {{Icon|Start}} Fringe science
  20. {{Icon|C}} Funding of science
  21. {{Icon|C}} Metascience
  22. {{Icon|Start}} Methodology
  23. {{Icon|LIST}} Model
  24. {{Icon|C}} {{Icon|DGA}} Nature (Level 3)
  25. {{Icon|C}} Observation (Level 4)
  26. {{Icon|C}} Open science
  27. {{Icon|C}} {{Icon|FFA}} Peer review
  28. {{Icon|C}} Scholarly peer review
  29. {{Icon|Start}} Protoscience
  30. {{Icon|C}} Reproducibility
  31. {{Icon|C}} Replication crisis
  32. {{Icon|B}} Research (Level 4)
  33. {{Icon|C}} Basic research
  34. {{Icon|Start}} Scientific community
  35. {{Icon|Start}} Scientific evidence
  36. {{Icon|C}} Scientific law
  37. {{Icon|B}} Scientific method (Level 3)
  38. {{Icon|C}} Scientific misconduct
  39. {{Icon|C}} Scientific modelling (Level 4)
  40. {{Icon|C}} Computational science
  41. {{Icon|C}} Scientific theory (Level 4)
  42. {{Icon|C}} Scientist
  43. {{Icon|Start}} Self-replication
  44. {{Icon|C}} {{Icon|DGA}} System (Level 4)
  45. {{Icon|C}} Complex system
  46. {{Icon|C}} Cybernetics (Level 4)
  47. {{Icon|C}} Feedback

{{Div col end}}

Research methods

{{Vital article count|14}}

  1. {{Icon|GA}} Animal testing
  2. {{Icon|B}} Testing cosmetics on animals
  3. {{Icon|C}} Clinical trial
  4. {{Icon|Start}} Field research (Level 4)
  5. {{Icon|Stub}} Fieldnotes
  6. {{Icon|C}} Laboratory (Level 4)
  7. {{Icon|C}} Anechoic chamber
  8. {{Icon|C}} Laboratory safety
  9. {{Icon|B}} Medical laboratory
  10. {{Icon|B}} Cleanroom
  11. {{Icon|Start}} Laboratory glassware
  12. {{Icon|Start}} Qualitative research
  13. {{Icon|Start}} Case study
  14. {{Icon|C}} Quantitative research

Measurement

{{Vital article count|273}}

This list contains units of measurement and articles on metrology. For the measured quantities, see the Science and Mathematics (Level 4) sections. For timekeeping and navigation, see the Everyday life (Level 4) and Technology (Level 4) sections. For measurement errors, see the Statistics (Level 4) section in Mathematics.

=Measurement: General=

{{Vital article count|51}}

==Basics ==

{{Vital article count|11}}

{{Div col|colwidth=20em}}

  1. {{Icon|C}} Measurement (Level 3)
  2. {{Icon|C}} Accuracy and precision (Level 4)
  3. {{Icon|GA}} Metrology (Level 4)
  4. {{Icon|B}} Chronometry
  5. {{Icon|C}} Unit of measurement (Level 4)
  6. {{Icon|C}} Conversion of units
  7. {{Icon|C}} Units of information
  8. {{Icon|Start}} Dry measure
  9. {{Icon|C}} Dimensional analysis
  10. {{Icon|C}} Buckingham π theorem
  11. {{Icon|Start}} Telemetry

{{Div col end}}

==Measurement systems ==

{{Vital article count|40}}

{{Div col|colwidth=20em}}

  1. {{Icon|C}} System of units of measurement
  2. {{Icon|C}} Coherence (units of measurement)
  3. {{Icon|Start}} Approximate measures
  4. {{Icon|C}} {{Icon|DGA}} Apothecaries' system
  5. {{Icon|Start}} Astronomical system of units
  6. {{Icon|C}} Avoirdupois
  7. {{Icon|Start}} Biblical and Talmudic units of measurement
  8. {{Icon|Start}} Chinese units of measurement
  9. {{Icon|B}} Cooking weights and measures
  10. {{Icon|C}} English units
  11. {{Icon|Start}} English brewery cask units
  12. {{Icon|C}} Winchester measure
  13. {{Icon|B}} Imperial and US customary measurement systems
  14. {{Icon|B}} Imperial units (Level 4)
  15. {{Icon|B}} United States customary units (Level 4)
  16. {{Icon|Start}} Comparison of the imperial and US customary measurement systems
  17. {{Icon|Start}} Foot–pound–second system of units
  18. {{Icon|Start}} International yard and pound
  19. {{Icon|B}} Japanese units of measurement
  20. {{Icon|C}} Korean units of measurement
  21. {{Icon|GA}} Metric system (Level 4)
  22. {{Icon|B}} {{Icon|DGA}} International System of Units (Level 3)
  23. {{Icon|C}} Caesium standard
  24. {{Icon|B}} International Prototype of the Kilogram
  25. {{Icon|C}} SI base unit
  26. {{Icon|Start}} International System of Quantities
  27. {{Icon|Start}} MKS units
  28. {{Icon|C}} Centimetre–gram–second system of units
  29. {{Icon|Stub}} Metre–tonne–second system of units
  30. {{Icon|Start}} Gravitational metric system
  31. {{Icon|C}} Natural units (Level 4)
  32. {{Icon|C}} Planck units (Level 4)
  33. {{Icon|C}} Atomic units
  34. {{Icon|Start}} Geometrized unit system
  35. {{Icon|C}} Gaussian units
  36. {{Icon|Start}} Heaviside–Lorentz units
  37. {{Icon|C}} Stoney units
  38. {{Icon|C}} Troy weight
  39. {{Icon|Start}} Typographic unit
  40. {{Icon|Start}} Unit of account

{{Div col end}}

=Units of measurement =

{{Vital article count|222}}

{{Div col|colwidth=15em}}

==Angle ==

{{Vital article count|5}}

  1. {{Icon|C}} Degree (angle) (Level 4)
  2. {{Icon|C}} Minute and second of arc
  3. {{Icon|C}} Radian (Level 4)
  4. {{Icon|Start}} Milliradian
  5. {{Icon|Start}} Gradian

==Solid angle ==

{{Vital article count|2}}

  1. {{Icon|Start}} Steradian (Level 4)
  2. {{Icon|Stub}} Square degree

==Length ==

{{Vital article count|36}}

===Metric ===

{{Vital article count|8}}

  1. {{Icon|B}} Metre (Level 4)
  2. {{Icon|Start}} Height above mean sea level
  3. {{Icon|C}} Kilometre
  4. {{Icon|Start}} Centimetre
  5. {{Icon|Start}} Millimetre
  6. {{Icon|Start}} Micrometre
  7. {{Icon|Start}} Nanometre
  8. {{Icon|C}} Angstrom

===English ===

{{Vital article count|13}}

  1. {{Icon|C}} Inch (Level 4)
  2. {{Icon|Start}} Nail (unit)
  3. {{Icon|C}} Palm (unit)
  4. {{Icon|Start}} Hand (unit)
  5. {{Icon|C}} Foot (unit) (Level 4)
  6. {{Icon|C}} Cubit (Level 4)
  7. {{Icon|C}} Yard
  8. {{Icon|C}} Fathom
  9. {{Icon|C}} Rod (unit)
  10. {{Icon|Start}} Chain (unit)
  11. {{Icon|Start}} Furlong
  12. {{Icon|B}} Mile
  13. {{Icon|C}} Nautical mile

===East Asian ===

{{Vital article count|5}}

  1. {{Icon|Start}} Chi (unit)
  2. {{Icon|Start}} Cun (unit)
  3. {{Icon|C}} Ken (unit)
  4. {{Icon|Start}} Li (unit)
  5. {{Icon|Start}} Shaku (unit)

===Astronomical ===

{{Vital article count|5}}

  1. {{Icon|B}} Astronomical unit (Level 4)
  2. {{Icon|C}} Lunar distance
  3. {{Icon|Start}} Solar radius
  4. {{Icon|B}} Light-year (Level 4)
  5. {{Icon|B}} Parsec (Level 4)

===Other ===

{{Vital article count|5}}

  1. {{Icon|Start}} Biblical mile
  2. {{Icon|Stub}} Day's journey
  3. {{Icon|Stub}} Pace (unit)
  4. {{Icon|Start}} Stadion (unit)
  5. {{Icon|Start}} X unit

==Area ==

{{Vital article count|11}}

  1. {{Icon|Stub}} Square inch
  2. {{Icon|Start}} Square foot
  3. {{Icon|Stub}} Square yard
  4. {{Icon|C}} Square metre
  5. {{Icon|C}} Acre (Level 4)
  6. {{Icon|C}} Hundred (county division)
  7. {{Icon|C}} Hectare (Level 4)
  8. {{Icon|Start}} Square kilometre
  9. {{Icon|Stub}} Square mile
  10. {{Icon|C}} Barn (unit)
  11. {{Icon|Start}} Pyeong

==Volume ==

{{Vital article count|19}}

  1. {{Icon|Start}} Cord (unit)
  2. {{Icon|Start}} Cubic inch
  3. {{Icon|Start}} Cubic foot
  4. {{Icon|Start}} Acre-foot
  5. {{Icon|C}} Litre (Level 4)
  6. {{Icon|Start}} Cubic metre
  7. {{Icon|Start}} Cubic centimetre
  8. {{Icon|B}} Teaspoon
  9. {{Icon|Start}} Dessert spoon
  10. {{Icon|Start}} Tablespoon
  11. {{Icon|Start}} Fluid ounce
  12. {{Icon|C}} Cup (unit)
  13. {{Icon|C}} Pint
  14. {{Icon|Start}} Quart
  15. {{Icon|C}} Barrel (unit)
  16. {{Icon|C}} Gallon (Level 4)
  17. {{Icon|Start}} Ge (unit)
  18. {{Icon|Start}} Koku

=== Volumetric flow rate ===

{{Vital article count|1}}

  1. {{Icon|Stub}} Cubic metre per second

==Power ==

{{Vital article count|3}}

  1. {{Icon|B}} Watt (Level 4)
  2. {{Icon|C}} Horsepower
  3. {{Icon|Start}} Solar luminosity

==Energy ==

{{Vital article count|10}}

  1. {{Icon|C}} Joule (Level 4)
  2. {{Icon|Stub}} Joule-second
  3. {{Icon|C}} British thermal unit
  4. {{Icon|C}} Calorie (Level 4)
  5. {{Icon|C}} Electronvolt (Level 4)
  6. {{Icon|Start}} Erg
  7. {{Icon|Stub}} Foot-pound (energy)
  8. {{Icon|C}} Kilowatt-hour
  9. {{Icon|C}} TNT equivalent
  10. {{Icon|Start}} Hartree

==Pressure ==

{{Vital article count|6}}

  1. {{Icon|C}} Pascal (unit) (Level 4)
  2. {{Icon|Start}} Standard atmosphere (unit) (Level 4)
  3. {{Icon|C}} Bar (unit)
  4. {{Icon|C}} Torr
  5. {{Icon|Start}} Millimetre of mercury
  6. {{Icon|Start}} Pound per square inch

==Momentum/impulse ==

{{Vital article count|1}}

  1. {{Icon|Stub}} Newton-second

==Force ==

{{Vital article count|4}}

  1. {{Icon|C}} Newton (unit) (Level 4)
  2. {{Icon|Start}} Dyne
  3. {{Icon|C}} Kilogram-force
  4. {{Icon|Start}} Pound (force)

==Torque ==

{{Vital article count|1}}

  1. {{Icon|Start}} Newton-metre

==Viscosity ==

{{Vital article count|2}}

  1. {{Icon|Start}} Poise (unit)
  2. {{Icon|Stub}} Reyn

==Mass and weight ==

{{Vital article count|29}}

  1. {{Icon|Start}} Solar mass
  2. {{Icon|C}} Jupiter mass
  3. {{Icon|Start}} Earth mass
  4. {{Icon|C}} Dalton (unit) (Level 4)
  5. {{Icon|GA}} Kilogram (Level 4)
  6. {{Icon|C}} Tonne
  7. {{Icon|Start}} Gram
  8. {{Icon|Start}} Microgram
  9. {{Icon|Start}} Carat (mass)
  10. {{Icon|C}} Ton (Level 4)
  11. {{Icon|Start}} Long ton
  12. {{Icon|Start}} Short ton
  13. {{Icon|C}} Bushel
  14. {{Icon|Stub}} Peck
  15. {{Icon|Start}} Ounce
  16. {{Icon|Stub}} Mark (unit)
  17. {{Icon|B}} Pound (mass) (Level 4)
  18. {{Icon|C}} Grain (unit)
  19. {{Icon|C}} Slug (unit)
  20. {{Icon|C}} Stone (unit)
  21. {{Icon|Start}} Dram (unit)
  22. {{Icon|Start}} Hundredweight
  23. {{Icon|Start}} Pennyweight
  24. {{Icon|C}} Electron mass

===Chinese ===

{{Vital article count|5}}

  1. {{Icon|Stub}} Candareen
  2. {{Icon|Stub}} Cash (unit)
  3. {{Icon|Start}} Catty
  4. {{Icon|Stub}} Mace (unit)
  5. {{Icon|Stub}} Picul

==Speed ==

{{Vital article count|5}}

  1. {{Icon|B}} Knot (unit) (Level 4)
  2. {{Icon|C}} Kilometres per hour
  3. {{Icon|Stub}} Metre per second
  4. {{Icon|Start}} Miles per hour
  5. {{Icon|Stub}} Foot per second

==Acceleration ==

{{Vital article count|3}}

  1. {{Icon|Start}} Gal (unit)
  2. {{Icon|Start}} Metre per second squared
  3. {{Icon|Start}} Standard gravity

==Angular velocity ==

{{Vital article count|3}}

  1. {{Icon|Stub}} Inverse second
  2. {{Icon|Stub}} Radian per second
  3. {{Icon|Start}} Revolutions per minute

==Ratio ==

{{Vital article count|6}}

  1. {{Icon|C}} Decibel (Level 4)
  2. {{Icon|Start}} Mole fraction
  3. {{Icon|Start}} Mass fraction (chemistry)
  4. {{Icon|Start}} Neper
  5. {{Icon|C}} Relative density
  6. {{Icon|Start}} Volume fraction

==Density ==

{{Vital article count|2}}

  1. {{Icon|Stub}} Gram per cubic centimetre
  2. {{Icon|Start}} Kilogram per cubic metre

==Concentration ==

{{Vital article count|4}}

  1. {{Icon|C}} Brix
  2. {{Icon|C}} Molar concentration
  3. {{Icon|Start}} Molality
  4. {{Icon|Start}} Parts-per notation

==Time ==

{{Vital article count|24}}

  1. {{Icon|C}} Attosecond
  2. {{Icon|Start}} Femtosecond
  3. {{Icon|Stub}} Picosecond
  4. {{Icon|Stub}} Nanosecond
  5. {{Icon|Start}} Shake (unit)
  6. {{Icon|Start}} Microsecond
  7. {{Icon|C}} Millisecond
  8. {{Icon|B}} Second (Level 4)
  9. {{Icon|Start}} Minute (Level 4)
  10. {{Icon|Start}} Moment (unit)
  11. {{Icon|B}} Hour (Level 4)
  12. {{Icon|C}} Day (Level 3)
  13. {{Icon|B}} Week (Level 4)
  14. {{Icon|Start}} Fortnight
  15. {{Icon|B}} Month (Level 4)
  16. {{Icon|C}} Year (Level 3)
  17. {{Icon|Start}} Olympiad
  18. {{Icon|C}} Decade
  19. {{Icon|C}} Century
  20. {{Icon|C}} Millennium
  21. {{Icon|Start}} Epoch
  22. {{Icon|C}} Era
  23. {{Icon|Start}} Aeon
  24. {{Icon|C}} Eternity

==Frequency ==

{{Vital article count|1}}

  1. {{Icon|C}} Hertz (Level 4)

==Specific intensity ==

{{Vital article count|1}}

  1. {{Icon|Start}} Jansky

==Charge ==

{{Vital article count|3}}

  1. {{Icon|C}} Coulomb (Level 4)
  2. {{Icon|Start}} Statcoulomb
  3. {{Icon|Stub}} Ampere-hour

==Current ==

{{Vital article count|1}}

  1. {{Icon|C}} Ampere (Level 4)

==Electric potential ==

{{Vital article count|1}}

  1. {{Icon|C}} Volt (Level 4)

==Capacitance ==

{{Vital article count|1}}

  1. {{Icon|C}} Farad (Level 4)

==Magnetic field ==

{{Vital article count|2}}

  1. {{Icon|C}} Tesla (unit) (Level 4)
  2. {{Icon|Start}} Gauss (unit)

==Magnetic flux ==

{{Vital article count|2}}

  1. {{Icon|Start}} Weber (unit) (Level 4)
  2. {{Icon|Start}} Maxwell (unit)

==Electrical resistance ==

{{Vital article count|1}}

  1. {{Icon|C}} Ohm (Level 4)

==Electrical conductance ==

{{Vital article count|1}}

  1. {{Icon|Start}} Siemens (unit) (Level 4)

==Inductance ==

{{Vital article count|1}}

  1. {{Icon|Start}} Henry (unit) (Level 4)

==Temperature ==

{{Vital article count|4}}

  1. {{Icon|B}} Celsius (Level 4)
  2. {{Icon|C}} Fahrenheit (Level 4)
  3. {{Icon|B}} Kelvin (Level 4)
  4. {{Icon|C}} Rankine scale

==Amount of substance ==

{{Vital article count|1}}

  1. {{Icon|C}} Mole (unit) (Level 4)

==Luminous intensity ==

{{Vital article count|2}}

  1. {{Icon|B}} Candela (Level 4)
  2. {{Icon|C}} Candlepower

==Luminous flux ==

{{Vital article count|1}}

  1. {{Icon|C}} Lumen (unit) (Level 4)

==Illuminance ==

{{Vital article count|1}}

  1. {{Icon|C}} Lux (Level 4)

==Radioactivity ==

{{Vital article count|2}}

  1. {{Icon|C}} Becquerel (Level 4)
  2. {{Icon|Start}} Curie (unit)

==Exposure ==

{{Vital article count|1}}

  1. {{Icon|Start}} Roentgen (unit)

==Absorbed dose ==

{{Vital article count|2}}

  1. {{Icon|C}} Gray (unit) (Level 4)
  2. {{Icon|C}} Rad (radiation unit)

==Equivalent dose ==

{{Vital article count|1}}

  1. {{Icon|C}} Sievert (Level 4)

==Catalytic activity ==

{{Vital article count|2}}

  1. {{Icon|Start}} Katal
  2. {{Icon|Stub}} Enzyme unit

==Information ==

{{Vital article count|11}}

  1. {{Icon|C}} Baud
  2. {{Icon|C}} Bit (Level 4)
  3. {{Icon|B}} Byte (Level 4)
  4. {{Icon|C}} Kilobyte
  5. {{Icon|C}} Megabyte
  6. {{Icon|C}} Gigabyte
  7. {{Icon|Start}} Nat (unit)
  8. {{Icon|Start}} Shannon (unit)
  9. {{Icon|C}} Qubit

===Visual ===

{{Vital article count|2}}

  1. {{Icon|Start}} Dots per inch
  2. {{Icon|C}} Pixel density

==Other ==

{{Vital article count|3}}

  1. {{Icon|C}} Alcohol proof
  2. {{Icon|C}} Air quality index
  3. {{Icon|B}} Ultraviolet index

{{Div col end}}

{{Core topics}}

All languages should have

Vital articles