• Conversion factors are used in solving problems in which a certain measurement must be expressed with different units.
  • When a given measurement is multiplied by an appropriate conversion factor, the numerical value changes, but the actual size of the quantity measured remains the same.
  • A conversion factor is a ratio of equivalent measurements.
  • Dimensional analysis is a technique that uses the units (dimensions) of the measurement in order to correctly solve problems.
  • The metric system’s use of powers of 10 for all conversions makes this quite simple.
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