The mass of an object is how heavy it is. The amount of matter in an object is its mass. You can use the words 'heavy' and 'light' to describe the mass of an object. You can use the words 'heavier ...

A gram is a standard unit of measurement. It is a word used to describe the mass of an object. You record the mass of light objects in grams. One way to measure the mass of objects is to use ...

When we want to measure the mass of an object that weighs more than 1000 grams we use kilograms. Kilograms are shortened to ‘kg’. Look at the items below. As they are over 1000 grams we can ...

The gravitational field strength (\(g\)) of a planet is the weight per unit mass of an object on that planet. It has the units, newtons per kilogram, \(N kg^{-1}\). The weight of an object can be ...

Mass (\(m\)) is a measure of the quantity of matter that makes up an object. It is measured in kilograms (\(kg\)). The mass of an object can only change if some mass is added or taken away.

The mass of an object tells you how heavy something is. You can measure mass in grams (g) and kilograms (kg). Light items, like apples and bananas, are measured in grams. Heavy objects ...

The mass of an object tells you how heavy something is. You can measure mass in grams (g) and kilograms (kg). Light items, like apples and bananas, are measured in grams. Heavy objects ...