# density?

• Feb 1st 2010, 06:48 AM
andyboy179
density?
Hi, this is my question:
find the density of a piece of wood weighing 6g and having a volume of 8cm^3?
would i do 6/8= 0.75?
• Feb 1st 2010, 06:56 AM
songoku
Hi andy

Yes but beware of the units. They are not in SI.
• Feb 1st 2010, 07:01 AM
andyboy179
Quote:

Originally Posted by songoku
Hi andy

Yes but beware of the units. They are not in SI.

SI??? would i just put 0.75 or 0.75 with the units of measure?
• Feb 1st 2010, 07:13 AM
songoku
Hi andy

This will help : International System of Units - Wikipedia, the free encyclopedia

You have to include the unit, which is g/cm^3
• Feb 1st 2010, 07:35 AM
e^(i*pi)
In addition the SI unit of density is $kgm^{-3}$ and $1\, \text{ kg m}^{-3} = 1000 \text { g cm}^{-3}$