Mass is a property of an object which measures how much basic material (protons, neutrons etc.) is present in the object.
Mass in S.I. units is measured in Kilogrammes (Kg). The absolute kilogramme is a block of platinum-iridium alloy locked in a vault in France.
Links to this page /
Page history /
Last change to this page
Recent changes /
Edit this page (with sufficient authority)
All pages /
Change password /