Definitions
Mass is the measure of quantity of matter in a body.
Weight is the measure of pull of gravity on a body.
Weight = mass (m) x force of gravity (g).
NOTE:
- The quantity of matter does not change despite its geographical position. Thus mass of a body is constant everywhere.
- Weight of a body is dependent on gravitational field strength. Gravitational field strength varies from one place to another on the earth surface, being strong at the poles and weak at the equator.