Objects can be measured in different units, depending on their size. It is important to know the conversions between metric units. When you are converting one type of unit to another you need to ...

Have you ever noticed that systems of measurement tends to change when you leave the United States? Weight is typically ...

The mass of a bag of sugar, commonly 1 kg (kilogram). Work out what metric unit could be used to estimate the height of a leisure centre. Using the fact that the height of a standard door is 2 ...

No such simple relations existed in standard units of weight and measure among units of length (inches, feet, yards, miles) or among units of length, volume and weight. In other words, the French ...

By the 1830s, standards based on British units of length, area, and volume were distributed to the states, and from there to local authorities. In the meantime, a new system of weights and measures, ...

A nanometer (nm) is a unit of length in the metric system, defined as one billionth (10-9) of a meter (m). The meter is the base unit of length in the International System of Units (SI), making the ...

A nanosecond (ns) is a unit of time in the metric system, equal to one billionth (10-9) of a second (s). The second is the base unit of time in the International System of Units (SI), making the ...