Metric system of Measurement

The metric system of measurement is used in science, engineering, and commerce based on the International System of Units (SI). It is the most widely used system of measurement in the world. The metric system consists of seven base units: the meter (m), kilogram (kg), second (s), ampere (A), kelvin (K), mole (mol), and candela (cd). These base units are then used to derive other units such as Newton (N), Pascal (Pa), joule (J), and watt (W).

Name of Unit	Symbol	Definition
Meter	m	The length of the path travelled by light in a vacuum in 1/299,792,458 of a second
Kilogram	kg	The mass of a particular international prototype kept at the International Bureau of Weights and Measures
Second	s	The duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom
Ampere	A	The constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 meter apart in vacuum, would produce between these conductors a force equal to 2 x 10-7 newtons per meter of length
Kelvin	| K	The fraction 1/273.16 of the thermodynamic temperature of the triple point of water
Mole	mol	The amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon-12
Candela	cd	The luminous intensity, in a given direction, of a source that emits monochromatic radiation

Measurement of length 1 cm = 10 mm 1 mm = 0.1 cm 1 m = 100 cm 1 cm = 0.01 m 1 km = 1000 m 1 m = 0.001 km

Measurement of mass / weight

1 cg = 10 mg

1 mg = 0.1 cg

1 g = 100 cg

1 cg = 0.01 g

1 g = 1000 mg

1 mg = 0.001 g

1 kg = 1000 g

1 g = 0.001 kg

1 tonne = 1000 kg

1 kg = 0.001 tonne

Measurement of volume

1 cl = 10 ml

1 ml = 0.1 cl

1 l = 100 cl

1 cl = 0.01 l

1 l = 1000 ml

1 ml = 0.001 l

1 kl = 1000 l

1 l = 0.001 kl

 Measurement

Measurement is the process of assigning a number to a characteristic of an object or event, which can then be used to compare it to other objects or events. A measurement is an important tool in science and engineering for quantifying physical properties and for making meaningful comparisons between objects or events.

Different types of measurement

1. Length: A measure of the space occupied by an object, typically expressed in meters, centimeters, inches, or feet. 2. Area: A measure of the space occupied by a two-dimensional object, typically expressed in square meters, square centimeters, square inches, or square feet. 3. Volume: A measure of the space occupied by a three-dimensional object, typically expressed in cubic meters, cubic centimeters, cubic inches, or cubic feet. 4. Mass: A measure of the amount of matter contained in an object, typically expressed in kilograms or pounds. 5. Time: A measure of the duration of an event, typically expressed in seconds, minutes, hours, days, weeks, or years. 6. Temperature: A measure of the heat energy contained in an object, typically expressed in Celsius or Fahrenheit. 7. Pressure: A measure of the force exerted on an object, typically expressed in pascals or pounds per square inch. 8. Force: A measure of the push or pull exerted on an object, typically expressed in newtons.

Types of measuring systems 1. Metric system: The international standard of measurement based on the metric system, with standard units of length, mass, and volume. 2. Imperial system: A system of measurement based on traditional English units, with standard units of length, mass, and volume. 3. US customary system: A system of measurement based on traditional American units, with standard units of length, mass, and volume. 4. CGS (centimeter-gram-second) system: A system of measurement based on the metric system, with the centimeter as the unit of length, the gram as the unit of mass, and the second as the unit of time. 5. MKS (meter-kilogram-second) system: A system of measurement based on the metric system, with the meter as the unit of length, the kilogram as the unit of mass, and the second as the unit of time.

Metric system The metric system is the international decimal system of weights and measures. It is based on the meter, liter and gram as the base units of length, capacity and weight or mass. Other units of the metric system include the liter for volume, Celsius for temperature, the hertz for frequency, the newton for force and the joule for energy.