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• 1-3 International System of Units

• February 16, 2022

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• PHY101 Physics I © Dr.Cem Özdoğan

• Length, Mass and Time, units for these parameters are regarded as base units. (SI base units are m, kg, and s)

• Units for other parameters are defined in terms of these base units and are called derived units
• Joules (work-energy): 1 J = 1 kg m2/s2
• Watts (power): 1 W = 1 J/s = 1 kg m2/s3