Archimedes Lab

The main purpose of the lab was to demonstrate that FB = density of fluid x g x volume submerged.  FB was simply the change in mass reading x g and could be found to .001 N with some care. We confirmed that our equation was correct by using the equation and the MEASURED FB from delta M x g  to find the volume of the submerged object and then using that to find the object's density. If the density found this way proved to be correct by comparison with standard values, then our equation relating FB and volume is correct.

The comparison of FB found exactly from the balance mass reading  increase following from density x g x change in fluid height in the beaker x beaker area was a sidelight and the measurements were crude and could yield  large ( 30% or so errors.)