Mass versus weight
||The English used in this article may not be easy for everybody to understand. (June 2012)|
This means the mass of an object will remain at wherever it is on the earth’s surface, but if it is moved from the equator to the North Pole, its weight will grow by 0.5% because of the increase in the earth’s gravitational field.
Mass to the general means of how “heavy” something is. However, mass is really an inertial property; that is, the tendency of an object to remain at constant velocity unless acted upon by an outside force. According to Newton's second law of motion, as expressed in the formula an object with a mass, m, of one kilogram will accelerate, a, at one meter per second per second (about one-tenth the acceleration due to earth’s gravity) when acted upon by a force, F, of one newton.