Measurement of physical properties| Mole concept | Grade 11 | Chemistry | Khan Academy

In this video, we explore the International System of Units (SI) and understand why standardization in measurement is crucial — illustrated through real-world examples, including the infamous Mars Climate Orbiter failure caused by a unit mismatch. We’ll dive into the seven fundamental scientific quantities, take a quick look at CGS units, and see how SI units are deeply embedded in our daily lives — from cooking and construction to healthcare and space missions.

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Timestamps:
0:00 Importance of units
0:45 Importance of consistent standard units
2:11 Introduction to SI units
6:27 Summary of Seven Fundamental SI units
7:23 Derived SI units
8:30 Introduction to CGS system
8:45 Real world applications of SI units

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Created by
Nitika Duggal

Видео Measurement of physical properties| Mole concept | Grade 11 | Chemistry | Khan Academy канала Khan Academy India - English