Fundamental Physical Quantities : The Building blocks of Measurement

Fundamental Physical Quantities : The Building blocks of Measurement

The building blocks of physics are the physical quantities in terms of which the laws of physics can be expressed.

All quantities which can be measured either directly or indirectly are called physical quantities, such as length, time, mass, temperature, speed, force, electric current, etc.

Physical Quantities are divided into two classes:

  • Fundamental Quantities and
  • Derived Quantities

Examples of fundamental quantities are length, mass and time.

Measuring Ruler

Length is a Fundamental Quantity

mass-measuring--balance

Mass is a fundamental Quantity

Time Measurement.

Time is a Fundamental Quantity

Images: Length mass and time are fundamental quantities

Speed is an example of derived quantity as it is derived from the measurement of length and time.

Image Credits: Time, Scale and Mass

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