ECOR 1010 Lecture Notes - Lecture 4: Observational Error, Flight Engineer, Significant Figures

• School: Carleton University
• Department: Engineering Common Core Courses
• Course: ECOR 1010
• Professor: Glen Mc Rae

Document Summary

Learning outcomes: by the end of this class you should be able to. Si magnitude prefixes: the unit may be preceded by a magnitude prefix; The prefix is regarded as an inseparable part of the symbol: e. g. km2 = (1000m)2, not 1000m2. Writing quantities with units: standardized rules for correctly representing quantities with units: A physical quantity is written as a number or a formula representing a number, followed be unit symbols. Rules for writing with units - 1: always a space between numeric value and unit: 23. 67 kg not 23. 67kg: unit symbols are treated like algebraic factors that can be multiplied or divided with numbers or other unit symbols: Multiplication between units is indicated by a centred dot or a half-space, Division by a slash or a negative superscript: 27 kg m/s2 or 27 kg m/s2 or 27 kg m s (cid:1006) Rules for writing with units - 2: unit symbols are not modified with subscripts: