Measurement(मोजमापन)-mpsc science

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Intro of Measurement(मोजमापन)

➤It is need to have a specific Quantity of that matter to measure it correctly and that standard is called as UNIt.
➤Matter,things and substances are measured by various type of concept
➤ CGS Unit- centimeter Gram second Unit
➤ FPS Unit-Foot,Pound,Second
➤ MKS Unit-Meter,Kilogram,Second
➤ SI Unit-International Unit -in 1790 French created this measurement standards
➤There are two more types of unit

Fundamental Units

➤ A base unit is a unit adopted for measurement of a base quantity. A base quantity is one of a conventionally chosen subset of physical quantities, where no quantity in the subset can be expressed in terms of the others
➤There are 7 fundamental units.

Derived Unit

➤This Units are derived from fundamental units

Scalar Quantity

➤ The physical quantities which are specified with the magnitude or size alone are scalar quantities.
➤ For example, length, speed, work, mass, density, etc.

Vector Quantity

➤ Vector quantities refer to the physical quantities characterized by the presence of both magnitude as well as direction.
➤For example, displacement, force, torque, momentum, acceleration, velocity, etc.

Difference between Scalar And Vector