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Entity > Abstract > Quantity > PhysicalQuantity > ConstantQuantity > MassMeasure

MassMeasure
subject			fact

MassMeasure	documentation The Class of ConstantQuantities relating to the amount of matter in an Object
	is first domain of DensityFn
	is a kind of ConstantQuantity
ConstantQuantity	has axiom (=> (instance ?FUNCTION UnaryConstantFunctionQuantity) (and (domain ?FUNCTION 1 ConstantQuantity) (range ?FUNCTION ConstantQuantity)))
	is second domain of measure
PhysicalQuantity	is partitioned into ConstantQuantity, FunctionQuantity
Abstract	is disjoint from Physical

Kinds of MassMeasure :

• Amu (4 facts) - Atomic mass unit. Symbol: u. It is the mass of the twelfth part of an atom of the Carbon 12 isotope
• AtomGram (3 facts) - MassMeasure that is also known as the gram-atom. Defined as the mass in grams of 1 Mole of pure substance. For example, 1 AtomGram of Carbon 12 will be 12 Grams of pure Carbon 12. 2 AtomGrams of the same substance will be 24 Grams of it. This is an unusual unit in that it is essentially 1 Mole of 'stuff' measured in grams, so that the actual value (i.e. mass) depends on the type of substance
• Gram (5 facts) - Submultiple of Kilogram. Symbol: g. 1 Kilogram = 1000 Grams
• Kilogram (8 facts) - SI MassMeasure. Symbol: kg. It is one of the base units in SI (it is also the basic unit of mass in the MKS system), and it is equal to the mass of the international prototype of the Kilogram
• PoundMass (3 facts) - English mass unit of pounds
• Slug (4 facts) - English mass unit of slugs