Units and Constants

Get units and constants reviews and study guides here. Learn about units and constants or brush up on your skills. Thorough explanations and practice examples will help you review physics.

Study Guides

showing 1 - 10 of 16
  • 1.

    Measurement Systems Help

    Introduction to Measurement Systems Numbers by themselves are abstract. Units make numbers concrete. We can say that a quantity is this wide, is that heavy, lasts this long, or is that hot; it extends for this many millimeters, ...

    Source: McGraw-Hill Professional
  • 2.

    Conversions Between Different Systems of Units Help

    Introduction to Conversions With all the different systems of units in use throughout the world, the business of conversion from one system to another has become the subject matter for Web sites. Nevertheless, in order to get familiar with how ...

    Source: McGraw-Hill Professional
  • 3.

    Units of Measurement Practice Test

    Review the following concepts if needed: Measurement Systems Help Base Units in the International ...

    Source: McGraw-Hill Professional
  • 4.

    Some Laws for Vectors Help

    Introduction When it comes to rules, vectors are no more exalted than ordinary numbers. Here are a few so-called laws that all vectors obey. Multiplication By Scalar When any ...

    Source: McGraw-Hill Professional
  • 5.

    Circles and Ellipses for Physics Help

    Introduction Let’s get into plane curves. In some ways, the following formulas are easier for mathematicians to derive than the ones for figures consisting of lines and angles; in other ways, the formulas for curves are more troublesome. ...

    Source: McGraw-Hill Professional
  • 6.

    Basics Of Geometry for Physics Practice Test

    Review the following concepts if needed: Fundamental Rules of Geometry for Physics Help

    Source: McGraw-Hill Professional
  • 7.

    Systems of Units Help

    Introduction to System of Units Units are devices that scientists use to indicate, estimate, and calculate aspects of the world and the universe. Numbers by themselves are abstract. Try to envision the number 5 in your mind. You think of a set or object: five ...

    Source: McGraw-Hill Professional
  • 8.

    Base Units in SI Help

    Introduction to Base Units in SI In all systems of measurement, the base units are those from which all the others can be derived. Base units represent some of the most elementary properties or phenomena we observe in nature.

    Source: McGraw-Hill Professional
  • 9.

    Other Units in Physics Help

    Introduction to Other Units in Physics The preceding seven units can be combined in various ways, usually as products and ratios, to generate many other units. Sometimes these derived units are expressed in terms of the base units, ...

    Source: McGraw-Hill Professional
  • 10.

    Physics and Constants Help

    Introduction to Physics and Constants Constants are characteristics of the physical and mathematical world that can be “taken for granted.” They don’t change, at least not within an ordinary human lifetime, unless certain other factors ...

    Source: McGraw-Hill Professional
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