Units of Mass or Weight

This lecture series discusses different units of mass in the metric and U.S. customary systems. Mass and weight are not the same thing, even though they are used interchangeably in everyday language.

Metric system: units of weight

Source: Khan Academy, https://www.khanacademy.org/math/cc-fourth-grade-math/imp-measurement-and-data-2#imp-estimating-mass://i.creativecommons.org/l/by-nc-sa/3.0/80x15.png" alt="Creative Commons License" /> This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License.