Concepts of Measurement

Measurement: The process of assigning numbers to observations or events to describe physical quantities.

Fundamental quantities: The basic physical quantities of measurement which cannot be derived from any other physical quantities. They form the foundation for all other derived quantities.

Importance of measurement:

1. Determination of time: Time helps in planning daily activities. It can be measured in seconds, minutes, hours, days, and years.
2. Determination of amount of quantities: Measurement helps in knowing the quantity of food, water, fruits, clothing size, and other daily needs.
3. Designing of equipment and materials: Accurate measurements are essential in creating useful items like clothes, furniture, gadgets, buildings, and machines to meet user needs.
4. Medical services: Doctors rely on measurement to assess the extent of illness and to administer the correct dosage of medication.
5. Predicting weather conditions: Measurement of temperature, humidity, rainfall, wind speed and direction helps in weather forecasting and planning of economic or transport activities.