Measurement In Science and Technology — Chapter Summary
NIOS · Class 10 · Science & Tech
Summary of Measurement In Science and Technology for NIOS Class 10 Science & Tech. Part of the NIOS Class 10 Science & Tech syllabus.
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Overview
Measurement is the comparison of a physical quantity with a chosen standard. It is essential in daily life, trade, science, sports, travel, and technology because it gives accuracy and a common understanding of quantities. A measurement has two parts: numerical quantity and unit. For a result to be
Key Concepts
Measurement is a kind of counting
Measurement is a kind of counting in which the number of times a chosen scale is used is found. For example, length can be measured with a tape, and m
A unit is a measure
A unit is a measure, device, or scale in terms of which a physical quantity is measured. The value of a physical quantity is equal to the numerical qu
A good unit must be relevant
A good unit must be relevant, convenient, and well defined. It should suit the quantity being measured, be practical to use, and be understood in the
Body parts such as digit
Body parts such as digit, foot, cubit, hand span, fathom, and pace vary from person to person, so they are arbitrary and inaccurate.
Ancient India used units such as
Ancient India used units such as Parmanu, Angul, and Yojan during the Chandragupta Maurya period. In the Mughal period, Gaz and Tassuj were used. Brit
Learning Objectives
- Define measurement and explain why it is needed
- Identify the limitations of body-based and historical units
- Describe the development of measurement systems in India and elsewhere
- Explain the need for standard and internationally accepted units
- Distinguish between base units and derived units
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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