Length: meter (m)
Mass: kilogram (kg)
Time: second (s)
Temperature (SI): kelvin (K)
Electric current: ampere (A)
Amount of substance: mole (mol)
Luminous intensity: candela (cd)
Force: newton (N)
Energy and work: joule (J)
Power: watt (W)
Pressure: pascal (Pa)
Frequency: hertz (Hz)
Electric charge: coulomb (C)
Voltage: volt (V)
Electrical resistance: ohm
Capacitance: farad (F)
Magnetic flux density: tesla (T)
Inductance: henry (H)
Radioactivity: becquerel (Bq)
Absorbed radiation dose: gray (Gy)
Conductance: siemens (S)
Magnetic flux: weber (Wb)
Speed: meters per second (m/s)
Acceleration: meters per second squared (m/s2)
Density: kilograms per cubic meter (kg/m3)
Momentum: kilogram meters per second (kg m/s)
Area: square meters (m2)
Volume: cubic meters (m3)
Symbol for the ohm: The Greek letter omega
Symbol for velocity: v
Symbol for acceleration: a
Symbol for mass: m
Symbol for force: F
Symbol for energy: E
Symbol for work: W
Symbol for power: P
Symbol for time: t
Symbol for distance: d
Symbol for pressure: P or p
Symbol for density: The Greek letter rho
Symbol for wavelength: The Greek letter lambda
Symbol for frequency: f
Symbol for voltage: V
Symbol for current: I
Symbol for resistance: R
Unit named for the discoverer of gravity's laws: Newton
Unit named for an English brewer who studied heat and work: Joule
Unit named for the Scottish engineer James Watt: Watt
Unit named for Blaise Pascal: Pascal
Unit named for Heinrich Hertz: Hertz
Unit named for Alessandro Volta: Volt
Unit named for Andre-Marie Ampere: Ampere
Unit named for Georg Ohm: Ohm
Unit named for Lord Kelvin: Kelvin
Unit named for Nikola Tesla: Tesla
Speed of light in a vacuum: About 300,000 kilometers per second (3.00 x 10^8 m/s)
Acceleration due to gravity on Earth: About 9.8 m/s2
Freezing point of water in Celsius: 0 degrees C
Boiling point of water in Kelvin: 373 K
Absolute zero in Celsius: -273.15 degrees C
Speed of sound in air, about: 343 meters per second at 20 degrees C
Calorie: A unit of energy; 1 calorie is about 4.18 joules
Horsepower: A unit of power; about 746 watts
Kilowatt-hour: A unit of energy equal to 3.6 million joules
Electronvolt: A tiny unit of energy used for particles
Light-year: The distance light travels in one year
Astronomical unit: The average distance from Earth to the Sun
Parsec: A unit of distance equal to about 3.26 light-years
Atmosphere (atm): A unit of pressure; the typical air pressure at sea level
Decibel: A unit used for the loudness of sound

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