The definition of inbound is something that moves inward. An example of inbound is the freeway that goes toward the city center. 1  traveling or going inward.  Basketball inbounds.
Mass is a measurement of how much matter is in an object. Mass is a combination of the total number of atoms, the density of the atoms, and the type of atoms in an object. How to Measure Mass.
Matter is defined as anything that occupies space and has mass. Mass is a measure of an object's inertia. It is proportional to weight: the more mass an object has, the more weight it has.However, mass is not the same as weight.Weight is a force created by the action of gravity on a substance while mass is a measure of an object's resistance to change in motion.atter is defined as anything that occupies space and has mass. Mass is a measure of an object's inertia. It is proportional to weight: the more mass an object has, the more weight it has.