Order of Magnitude Calculations
Always ask is a result is reasonable or believable.
Don't rely entirely on your calculation (remember; GIGO!).
If you're working in the lab and calculate that an air track glider had a speed of 567.89 m/s, STOP! That's an ernormous speed. Something has gone wrong.
Make an estimate before going through the detailed calculations.
Units Conversion Significant Figures Return to Table of Contents, Ch 1 Introduction (c) 2002, Doug Davis; all rights reserved