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Chapter 1

Units and Measurements

Basic and derived units, systems of units, prefixes, measurement standards, and the instruments used to measure length, mass, and time.

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1.1–1.2 Basic and Derived Units, and System of Units

Basic and Derived UnitsEasy
System of UnitsEasy

1.3–1.4 Prefixes, and Standards and Units

PrefixesEasy
Standards and UnitsMedium

1.5 Measurement of Length

The Vernier CaliperMedium
The Micrometer Screw GaugeMedium

1.6 Measurement of Mass

Measurement of MassEasy

1.7 Measurement of Time

Measurement of TimeMedium

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