Measurements and Systems of Units Quiz
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Questions and Answers

What is the international system of units (SI) primarily based on?

  • Random errors and their units
  • Derivative quantities and their units
  • Systematic errors and their units
  • Fundamental quantities and their units (correct)

    • Which type of errors occur in all measurements and are contributed by background noise or mechanical vibrations in the laboratory?

  • Systematic errors
  • No errors
  • Random errors (correct)
  • Accurate measurements

    • What do conversion factors help in doing for physical quantities?

  • Determining dimensions of physical quantities
  • Defining the standard of time
  • Converting units from one system to another (correct)
  • Eliminating errors in measurements

    • What does dimensional analysis help in checking for physical formulas?

    <p>Consistency and correctness of physical formulas</p> Signup and view all the answers

    Which system is primarily used for expressing physical quantities using the international system of units (SI)?

    <p>International System of Units (SI)</p> Signup and view all the answers

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