Converting units, significant figures and standard form
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SI units and conversion rules

SI units and conversion rules

Conversion map for km, m, cm, mm, kg, g, h, min and s, plus a worked example converting 36 km/h to 10 m/s

Physics equations usually work best when every value is in SI units such as metres, kilograms and seconds. A physical quantity is what you measure, and the unit tells you the scale of that measurement.

Converting units, significant figures and standard form Lesson

  1. GCSE
  2. /Physics
  3. /Converting units, significant figures and standard form