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

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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.

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Total articles: 377/375

Science basics (50 articles)

1. Science (Level 1)
2. Academic discipline
   1. Interdisciplinarity
3. Branches of science
   1. Formal science
      1. Data science
      2. Information science
   2. Natural science
4. Data
   1. Data analysis
   2. Data sharing
5. Experiment (Level 4)
   1. Blinded experiment
6. Fringe science
7. Funding of science
8. Metascience
9. Nature (Level 4)
10. Observation (Level 4)
11. Open science
12. Peer review
    1. Scholarly peer review
13. Protoscience
14. Reproducibility
    1. Replication crisis
15. Research (Level 4)
    1. Basic research
    2. Field research (Level 4)
       1. Fieldnotes
    3. Laboratory (Level 4)
       1. Anechoic chamber
       2. Laboratory safety
       3. Medical laboratory
       4. Cleanroom
       5. Laboratory glassware
    4. Qualitative research
       1. Case study
    5. Quantitative research
16. Scientific community
17. Scientific evidence
18. Scientific law (Level 4)
19. Scientific method (Level 4)
20. Scientific misconduct
21. Scientific modelling (Level 4)
    1. Computational science
22. Scientific theory (Level 4)
23. Scientist
24. System (Level 4)
    1. Complex system
    2. Cybernetics (Level 4)
    3. Feedback

Measurement (327 articles)

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.

General (52 articles)

Basics (11 articles)

1. Measurement (Level 4)
2. Accuracy and precision (Level 4)
3. Metrology (Level 4)
   1. Chronometry
4. Unit of measurement (Level 4)
   1. Conversion of units
5. Units of information
6. Dry measure
7. Dimensional analysis
   1. Buckingham π theorem
8. Telemetry

Measurement systems (41 articles)

1. System of units of measurement
   1. Coherence (units of measurement)
2. Approximate measures
3. Apothecaries' system
4. Astronomical system of units
5. Avoirdupois
6. Biblical and Talmudic units of measurement
7. Chinese units of measurement
8. Cooking weights and measures
9. English units
   1. English brewery cask units
   2. English wine cask units
   3. Winchester measure
10. Imperial and US customary measurement systems
    1. Imperial units (Level 4)
    2. United States customary units (Level 4)
    3. Comparison of the imperial and US customary measurement systems
    4. Foot–pound–second system
    5. International yard and pound
11. Japanese units of measurement
12. Korean units of measurement
13. Metric system (Level 4)
    1. International System of Units (Level 4)
       1. Caesium standard
       2. International Prototype of the Kilogram
       3. SI base unit
    2. International System of Quantities
    3. MKS system of units
    4. Centimetre–gram–second system of units
    5. Metre–tonne–second system of units
    6. Gravitational metric system
14. Natural units (Level 4)
    1. Planck units (Level 4)
    2. Hartree atomic units
    3. Geometrized unit system
    4. Gaussian units
    5. Heaviside–Lorentz units
    6. Stoney units
15. Troy weight
16. Typographic unit
17. Unit of account

Units of measurement (275 articles)

Number (5 articles)

1. Crore
2. Dozen
3. Gross
4. Lakh
5. Myriad

Angle (5 articles)

1. Degree (Level 4)
   1. Minute and second of arc
2. Radian (Level 4)
   1. Milliradian
3. Gradian

Solid angle (2 articles)

1. Steradian (Level 4)
2. Square degree

Length (55 articles)

Metric (11 articles)

1. Metre (Level 4)
   1. Height above mean sea level
2. Kilometre
3. Centimetre
4. Decimetre
5. Millimetre
6. Micrometre
7. Nanometre
8. Angstrom
9. Picometre
10. Femtometre

English (23 articles)

1. Line
2. Barleycorn
3. Digit
4. Finger
5. Inch (Level 4)
6. Nail
7. Palm
8. Hand
9. Shaftment
10. Link
11. Span
12. Foot (Level 4)
13. Cubit (Level 4)
14. Yard
15. Ell
16. Fathom
17. Rod
18. Chain
19. Furlong
20. Cable length
21. Mile (Level 4)
22. Nautical mile (Level 4)
23. League (unit)

East Asian (6 articles)

1. Chi (unit)
2. Cun (unit)
3. Ken (unit)
4. Li (unit)
5. Shaku (unit)
6. Zhàng

Astronomical (5 articles)

1. Astronomical unit (Level 4)
2. Lunar distance
3. Solar radius
4. Light-year (Level 4)
5. Parsec (Level 4)

Typographic (4 articles)

1. Em
2. En
3. Point
4. Pica

Other (6 articles)

1. Biblical mile
2. Day's journey
3. Pace
4. Stadion
5. Verst
6. X unit

Area (17 articles)

1. Square inch
2. Square foot
3. Square yard
4. Square metre
5. Rood (unit)
6. Acre (Level 4)
7. Oxgang
8. Virgate
9. Carucate
10. Hide (unit)
11. Knight's fee
12. Hundred (county division)
13. Hectare (Level 4)
14. Square kilometre
15. Square mile
16. Barn
17. Pyeong

Volume (32 articles)

1. Cord
2. Cubic inch
3. Cubic foot
4. Cubic yard
5. Acre-foot
6. Cubic mile
7. Litre (Level 4)
8. Cubic metre
   1. Stere
9. Cubic centimetre
10. Minim
11. Drop
12. Pinch
13. Teaspoon
14. Dessert spoon
15. Tablespoon
16. Fluid ounce
17. Gill
18. Cup
19. Pint
20. Quart
21. Gallon (Level 4)
22. Ge
23. Koku

English wine and beer cask units (7 articles)

1. Rundlet
2. Barrel
3. Tierce
4. Hogshead
5. Puncheon
6. Butt
7. Tun

Volumetric flow rate (1 article)

1. Cubic metre per second

Power (3 articles)

1. Watt (Level 4)
2. Horsepower
3. Solar luminosity

Energy (10 articles)

1. Joule (Level 4)
   1. Joule-second
2. British thermal unit
3. Calorie (Level 4)
4. Electronvolt (Level 4)
5. Erg
6. Foot-pound
7. Kilowatt-hour
8. TNT equivalent
9. Hartree

Pressure (6 articles)

1. Pascal (Level 4)
2. Atmosphere (Level 4)
3. Bar
4. Torr
5. Millimetre of mercury
6. Pound per square inch

Momentum/impulse (1 article)

1. Newton-second

Force (4 articles)

1. Newton (Level 4)
2. Dyne
3. Kilogram-force
4. Pound

Torque (1 article)

1. Newton-metre

Viscosity (2 articles)

1. Poise
2. Reyn

Mass and weight (34 articles)

1. Solar mass
2. Jupiter mass
3. Earth mass
4. Dalton (Level 4)
5. Kilogram (Level 4)
6. Tonne
7. Gram
8. Microgram
9. Carat
10. Ton (Level 4)
    1. Long ton
    2. Short ton
11. Bushel
12. Peck
13. Lot
14. Ounce (Level 4)
15. Mark
    1. Cologne mark
16. Pound (Level 4)
17. Sack
18. Sarpler
19. Grain
20. Slug
21. Stone
22. Dram
23. Hundredweight
24. Pennyweight
25. Electron mass

Chinese (6 articles)

1. Candareen
2. Cash
3. Catty
4. Mace
5. Picul
6. Tael

Speed (5 articles)

1. Knot (Level 4)
2. Kilometres per hour
3. Metre per second
4. Miles per hour
5. Foot per second

Acceleration (3 articles)

1. Gal
2. Metre per second squared
3. Standard gravity

Angular velocity (3 articles)

1. Inverse second
2. Radian per second
3. Revolutions per minute

Ratio (6 articles)

1. Decibel (Level 4)
2. Mole fraction
3. Mass fraction
4. Neper
5. Relative density
6. Volume fraction

Density (2 articles)

1. Gram per cubic centimetre
2. Kilogram per cubic metre

Concentration (4 articles)

1. Brix
2. Molar concentration
3. Molality
4. Parts-per notation

Time (26 articles)

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

Frequency (1 article)

1. Hertz (Level 4)

Specific intensity (1 article)

1. Jansky

Charge (3 articles)

1. Coulomb (Level 4)
2. Statcoulomb
3. Ampere-hour

Current (1 article)

1. Ampere (Level 4)

Electric potential (1 article)

1. Volt (Level 4)

Capacitance (1 article)

1. Farad (Level 4)

Magnetic field (2 articles)

1. Tesla (Level 4)
2. Gauss

Magnetic flux (2 articles)

1. Weber (Level 4)
2. Maxwell

Electrical resistance (1 article)

1. Ohm (Level 4)

Electrical conductance (1 article)

1. Siemens (Level 4)

Inductance (1 article)

1. Henry (Level 4)

Temperature (4 articles)

1. Celsius (Level 4)
2. Fahrenheit (Level 4)
3. Kelvin (Level 4)
4. Rankine

Amount of substance (1 article)

1. Mole (Level 4)

Luminous intensity (2 articles)

1. Candela (Level 4)
2. Candlepower

Luminous flux (1 article)

1. Lumen (Level 4)

Illuminance (1 article)

1. Lux (Level 4)

Radioactivity (2 articles)

1. Becquerel (Level 4)
2. Curie

Exposure (1 article)

1. Roentgen

Absorbed dose (2 articles)

1. Gray (Level 4)
2. Rad

Equivalent dose (1 article)

1. Sievert (Level 4)

Catalytic activity (2 articles)

1. Katal
2. Enzyme unit

Information (13 articles)

1. Baud
2. Bit (Level 4)
3. Kilobit
4. Megabit
5. Byte (Level 4)
6. Kilobyte
7. Megabyte
8. Gigabyte
9. Nat
10. Shannon
11. Qubit

Visual (2 articles)

1. Dots per inch
2. Pixel density

Other (4 articles)

1. Alcohol proof
2. Perm (unit)
3. Air quality index
4. Ultraviolet index