Converting Grams to Cubic CentimetersDate: 03/27/2002 at 01:28:20 From: Denise Subject: Conversions How do you convert grams to cubic centimeters, I don't know where to start. Date: 03/27/2002 at 09:16:19 From: Doctor Rick Subject: Re: Conversions Hi, Denise. You can't convert grams to cubic centimeters. Conversions go between different units of the SAME MEASUREMENT. For instance, you can convert grams to kilograms or to pounds, because these are all units of mass (or "weight"). You can convert cubic centimeters to milliliters or to gallons, because these are all units of volume or capacity. (In fact, a cubic centimeter is the SAME UNIT as a milliliter.) If you know the mass of something in grams and you need to find its volume, you need additional information: the DENSITY of the material whose mass you know. Density is mass per unit volume, measured in (for instance) grams per cubic centimeter, so it resembles a conversion. It's different, though, because the density is different for different materials. The metric system was defined such that a cubic centimeter of WATER (under certain specific conditions of temperature and pressure) has a mass of 1 gram. Many familiar materials (milk, or people, for instance) are composed largely of water, so their density is very close to that of water. Thus for many purposes, at least if high accuracy is not needed, you can assume that 1 gram of such a substance has a volume of 1 cubic centimeter (or 1 milliliter). Just beware: this will not work with something like iron, and it's not very close for gasoline. - Doctor Rick, The Math Forum http://mathforum.org/dr.math/ |
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