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• 1-3 International System of Units

• February 16, 2022

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• PHY101 Physics I © Dr.Cem Özdoğan

• If you want to communicate about your measurements with others in the world, you need to agree upon some Standard Units of measurements.
• SI Units used to be called MKS system of units. In this course we will use International system of units (SI or Système International). It is also known as metric system.

• Scientific notation uses the power of 10.
• 3 560 000 000 m =
• 3.56 x 109 m.
• Sometimes special names are used to describe very large or very small quantities (Table 1-2).
• 2.35 x 10-9 = 2.35 nanoseconds (ns)