# Physics Conversions

**Astronomical Unit**- Defined as the mean distance of the Earth from the Sun.
**Atmospheric Pressure**- Atmospheric pressure is the force exerted by the weight of the atmosphere of the Earth at ground level.
**Bushel**- A dry or liquid measure equal to eight gallons.
**Carat Precious Stones**- A standard measure of weight for precious stones.
**Chain**- The chain is a unit of length.
**Charge**- The excess or deficiency of electrons resulting in the body having negative or positive charge.
**Cord**- An imperial unit of volume used mainly in the timber industry.
**Curie**- Unit of radioactivity equal to 3.7x10
^{10}Bequerels. **Energy**- Energy is defined as the capacity of a body for doing work.
**Fathom**- An old unit of length more normally used to measure the depth of water.
**Flow Rate**- Volume per unit of time.
**Force**- A force is that which when acting on a body that is free to move accelerates the motion of the body.
**Furlong**- A distance of one-eight of a mile.
**Gauss**- A unit of magnetic field strength, 10
^{-4}tesla. **Grain**- An individual crystal in a poly-crystalline metal or alloy.
**Hundredweight**- Abbreviated as cwt, this is an imperial unit of mass.
**Kelvin**- The kelvin is the unit of thermodynamic temperature.
**kilopond**- Another name for kilogram force.
**kJ**- An abbreviation of kilojoule, one thousand joules. The SI unit of energy is the joule.
**Knot**- A speed of 1 nautical mile per hour.
**kp**- Abbreviation of kilopond, another name for kilogram force.
**kph**- Abbreviation of kilometres per hour, a unit of velocity used by most land based vehicles.
**l**- The abbreviation of litre, a derived SI unit of volume.
**lbf**- Abbreviation of pound-force = 4.44822 N
**Leak Rate**- The rate of gas leakage into or out of a system.
**Length**- The SI unit of length is the metre.
**Light Year**- The light year is defined as the distance travelled by electromagnetic radiation in one tropical year.
**Lunar Month**- 1 lunar month = 2.551444x10
^{6}s **ly**- Abbreviation of Light Year.
**Mass**- The SI unit of mass is the kilogram.
**Mass Flow Rate**- Defines the volumetric rate with which fluids flow, maintaining the equation of continuity.
**maxwell**- The CGS unit of magnetic flux, equal to 1x10
^{-8}weber. **Megaparsec**- One million parsecs.
**Micron**- A derived SI Unit of length equal to 10
^{-6}m **Mile**- A unit of distance most commonly used in Britain and the US.
**Miles Per Hour**- Traditional British unit of velocity used by land based vehicles.
**Moments of Inertia**- Principal axes for bodies of uniform density.
**Mpa**- Abbreviation of megapascal.
**Mpc**- Abbreviation of Megaparsec, one million parsecs.
**Nautical Mile**- The average distance on the earth's surface subtended by one minute of latitude.
**P**- The abbreviation of poise, the CGS derived unit of dynamic viscosity of a fluid.
**Parsec**- 1 Parsec = 3.2615 Light Years
**Pascal**- The SI derived unit of pressure.
**Pennyweight**- An old unit of mass equal to 24 grains.
**Pint**- A derived British unit of volume.
**Pole**- An old English unit of length or the coldest regions on a planet.
**Pound**- The unit of mass in the British system of units.
**Pound Force**- pound-force (lbf) = 4.44822 N
**Poundal**- A derived unit of force in the British system of units.
**Power**- Power is defined as the rate of doing work.
**Pressure**- Defined as the force exerted per unit area.
**Prony**- Unit of power.
**Quintal**- A hundredweight in the metric system, 100kg.
**Radian**- The radian is the plane angle between two radii of a circle which cut off on the circumference an arc equal in length to the radius.
**Rankine Temperature Scale**- An absolute scale of temperature based on degrees Farenheit.
**Reaumur Temperature Scale**- On the Reaumur temperature scale, abbreviated to R, the ice point is 0°R and the steam point is 80°R.
**Revolutions per Minute**- Unit to describe the rate of rotation of a body.
**Revolutions per Second**- Unit to describe the rate of rotation of a body.
**Reyn**- British unit of dynamic viscosity.
**Rod**- An old English unit of length.
**rpm**- Abbreviation of revolutions per minute.
**rps**- Abbreviation of revolutions per second.
**Scruple**- An old unit of weight.
**Shed**- A unit of nuclear cross-section.
**Stathenry**- The unit of inductance in the obsolete electrostatic system of units.
**Statmho**- The unit of conductane in the obsolete electrostatic system of units.
**Statohm**- The unit of resistance in the obsolete electrostatic system of units.
**Statute Mile**- A unit of distance most commonly used in Britain and the US.
**Sthene**- The unit of force in the metre-tonne-second system.
**Tablespoon**- A convenient unit of capacity.
**Teaspoon**- A convenient unit of capacity.
**Temperature**- A measure as to whether two bodies are hot or cold relative to one another.
**TOE**- Abbreviation of the unit of energy Tonne of Oil Equivalent.
**Tonne of Oil Equivalent**- A unit of energy equal to 41.868 GJ

**Subjects: ** Physics