of known properties of mass is its unit: mass is expressed in gram or
in units derived from gram ( milligram, centigram etc )
mass is denoted m.
reflects the amount of matter which an object is composed.
Thus mass depends on the number and kind of atoms in that object.
definition of mass, if an object's composition isn't modified, it keeps
the same mass.
the mass do not depend on place an object is. Wherever an object is (
On earth, on the Moon, on another planet and even in space ) its mass
remain the same.
is the gravitational action exerted by Earth upon an object: it
therefore depends on the same factors as gravity.
- Weight depends on distance between an object and Earth: It lowers
- Weight depends on the celestial body's mass that exerts gravitational
action: the more massive a celestial body is, the higher weight of an
objetc is. Thus, weight is lower on The Moon than on Earth and far from
all celestial bodies an object doesn't have weight
weight of an object may vary while its mass remains constant.