NCERT Solutions for Class 6 Science Chapter 10
Important NCERT Questions
Class 6th Chapter 10 Motion and Measurement of Distances
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 3
Why can a pace or a footstep not be used as a standard unit of length?
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A pace or a footstep not be used as a standard unit of length because the size of pace and footstep vary from person to person. This will lead to confusion while measuring the lengths by different persons. We should use standard units like International System of Units (SI Units).
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Paces or footsteps differ in length among individuals, lacking uniformity for accurate measurement. Unlike standard units such as meters or feet, which have defined and consistent lengths, these informal units vary based on personal stride lengths. Using standardized units ensures reliability and accuracy in measurements for scientific, commercial, and daily purposes, making them more suitable for precise calculations.