Math is Fun

Math is Fun Home PageHOME

A-Z Listing




Top-rated teacher Web sites rated by teacher usage
Edunet site of the week January 2001
Maths Is Fun is ICRA Registered

Copyright © 2006
MathsIsFun.com

    Definitions -> M -> Mass

 Mass


A measure of how much matter is in an object.

This gold bar is quite small but weighs 1 kilogram (about 2.2 pounds), so it contains a lot of matter.

Mass is commonly measured by how much something weighs. But weight can change depending on where you are (such as in a moving elevator or on the moon) while the mass stays the same.

It is measured in grams, kilograms and, tonnes (Metric) or ounces and pounds (US units)