What is the correct statement for mass?
The mass of an object is measured in ______ .
Weight is a ______.
"Kilogram" means the mass of the ______ declared to be the international prototype of the kilogram by the First General Conference on Mass and Weight.
Weight of an object is the product of ______ of the heavenly body and the mass of the object.
On the surface of the earth, the mass having 1 kg has the weight of ______.