Question

why do we need to use metric system of measurement

Answer 1

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The metric system is the preferred system of scientific units for several reasons:

The majority of countries in the world employ the metric system of measurement.

The prefixes attached to metric units carry the same meaning for all base units.

The metric system is based upon powers of ten, which is convenient because:

A measurement in the metric system that is represented by a rational number remains a rational number after metric unit conversion. (For example, 250 mm = 25 cm = .25 m). In contrast irrational unit systems , such as the English system, do not have the same property (For example, 250 inches = 20.8333... ft = 0.0039457... mile)

Because metric units are decimal-based, they are easily converted by moving the decimal point.

Answer 2

We use the metric system of units because of the following reasons:

• Increments and powers of 10 – Fractions in metric calculations are expressed in decimal form, which eliminates the need to manipulate fractions. The decimal form makes calculations easier and also allows them to be displayed on automatic calculators.
• Standardized prefixes – The movements of the decimal point are expressed by prefixes. This eliminates the need for extra units, like inches or miles.
• Fewer individual units – Ir consists of only about 30 individual units. The common units, such as the meter, gram, and liter, can easily be learned and understood. And the other units can be expressed in terms of them.

So we use the metric system because of the mentioned reasons.