ENGR 112 Study Guide - Midterm Guide: Mean Squared Error, Central Limit Theorem, British Rail Class 04
6 Mar 2018
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Explain the difference between a dimension and a unit. Dimension - a measurable physical idea (ex: length, time, temperature) Unit - a dimension"s quantity in a specific situation. Understand how dimensions are expressed in the three main unit systems (si, aes, and uscs) Aes- used in the u. s (ex: foot, pounds, second, fahrenheit ) Uscs - english units (ex: foot, slug, second) Be able to use the 5 step conversion procedure to convert from one unit to a different unit, and then express the answer with correct significant figures and the correct abbreviation for the unit. Write the value and unit to be converted. Multiply the term from step 1 by the fraction developed in step 3. Addition/subtraction: the least decimals, use that amount of decimals. Explain the difference between a fundamental unit and a derived unit. Fundamental unit - a unit of measurement for a measurable property from which other units can be derived.
