How are weight and mass different?
To understand the differences we need to compare a few points:
1) Mass is a measurement of the amount of matter something contains, while Weight is the measurement of the pull of gravity on an object.
2) Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.
3) The Mass of an object doesn't change when an object's location changes. Weight, on the otherhand does change with location.
http://www.nyu.edu/pages/mathmol/textbook/wei... (Der Besuch lohnt sich. Man kann herausfinden, wie viel man auf Mars wiegt)
"Mass is measured by determining the extent to which a particle or object resists a change in its direction or speed when a force is applied."
"Mass is a measure of inertia; i.e., the resistance to change in motion. Alternatively, mass can be defined as a state (manifestation) of energy (E=MC²). Mass is measured in kilograms (kg) or multiples thereof. "