Definition:Metric System/Mass/Gram
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Definition
The gram is the CGS base unit of mass.
It is defined as the mass of a cubic centimetre water at the temperature of melting ice.
Conversion Factors
\(\ds \) | \(\) | \(\ds 1\) | gram | |||||||||||
\(\ds \) | \(=\) | \(\ds 10^{-3}\) | kilogram |
Symbol
- $\mathrm g$
The symbol for the gram is $\mathrm g$.
The $\LaTeX$ code for \(\mathrm g\) is \mathrm g
.
Also see
Historical Note
The gram was defined on 7 April 1795 to be equal to:
- the mass of a volume of water equal to the cube of the hundredth part of the metre, at the temperature of melting ice.
Linguistic Note
The original British English spelling of gram was gramme.
However, this is rarely used nowadays, as the American gram is now the international standard.
Sources
- 1938: A. Geary, H.V. Lowry and H.A. Hayden: Mathematics for Technical Students, Part One ... (previous) ... (next): Arithmetic: Chapter $\text I$: Decimals: The Metric System
- 1951: B. Hague: An Introduction to Vector Analysis (5th ed.) ... (previous) ... (next): Chapter $\text I$: Definitions. Elements of Vector Algebra: $1$. Scalar and Vector Quantities
- 1966: Isaac Asimov: Understanding Physics ... (previous) ... (next): $\text {I}$: Motion, Sound and Heat: Chapter $3$: The Laws of Motion: Mass
- 1969: J.C. Anderson, D.M. Hum, B.G. Neal and J.H. Whitelaw: Data and Formulae for Engineering Students (2nd ed.) ... (previous) ... (next): $1.$ Units and Abbreviations: $1.3$ British and other units
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): gram
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): gram