Question Which measurement is used in the metric system?

The metric system uses the International System of Units (SI) for measurement. The primary units of the metric system include meters for length, kilograms for mass, and seconds for time. Additional units are used for other quantities such as liters for volume, degrees Celsius for temperature, and moles for amount of substance, among others.

The metric system primarily uses the unit of measurement called the "meter" as a base unit. The metric system is a decimal-based system, which means that other units of measurement can be derived by applying a prefix to the meter.

To answer the question, we need to understand the basic units of the metric system. Here are some of the commonly used base units in the metric system:

1. Length: The meter (m) is the base unit for measuring length or distance.

2. Mass: The kilogram (kg) is the base unit for measuring mass. It is the mass of a specific platinum-iridium alloy cylinder kept at the International Bureau of Weights and Measures in France.

3. Time: The second (s) is the base unit for measuring time. It is based on the duration of 9,192,631,770 oscillations of the cesium-133 atom.

4. Temperature: The Kelvin (K) is the base unit for measuring temperature in the metric system. However, Celsius (°C) is also commonly used, which is based on the Kelvin scale but with a different reference point.

These base units can be combined or modified using prefixes to create other units that are multiples or fractions of the base units. Some common metric prefixes include kilo-, centi-, milli-, and micro-. For example, a kilometer (km) is equal to 1,000 meters, and a milligram (mg) is equal to one-thousandth of a gram.

So, in summary, the metric system uses the base unit of meter for measuring length, kilogram for measuring mass, second for measuring time, and Kelvin or Celsius for measuring temperature.

Step 1: The metric system uses a base unit called the meter for measuring length or distance.

Step 2: For measuring weight or mass, the metric system uses a base unit called the gram.

Step 3: The metric system also has a base unit called the liter for measuring volume.

Step 4: Some other common metric units include the kilometer, centimeter, millimeter for length, the kilogram for mass, and the milliliter for volume.

Step 5: In summary, the metric system uses the meter, gram, and liter as its base units for measuring length, mass, and volume, respectively.