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  • physics

    concerned with matter and energy

    special revelation

    the truth about God that can be found through the Bible

    general revelation

    the truth about God that can be found through the study of nature

    classical physics

    deals with subjects studied by physicists from the time of Galileo

    Modern physics

    new branches that have been developed to take physics in new directions: quantum mechanics, relativity, solid-state physics, and particle physics


    thinking deeply relying solely on whatever facts or insights you can discover within your own mind


    the careful watching and recording of events in nature for the purpose of enlarging what you already know

    physical quantities

    length and volume

    fundamental unit

    the result of direct measurement or physical characteristics

    derived unit

    the arithmetic combination of fundamental units, such as the cubic meter or cubic foot

    fundamental quantity

    a quantity measured in terms of a fundamental unit

    derived quantity

    a quantity measured in terms of a derived unit

    U.S. customary system (FPS system)

    the system most commonly used in the US for everyday measurements

    metric system (SI) (MKS system)

    the most common system of units used by scientists

    cgs system

    used in scientific work but not as much


    an unalterable fact that, by general agreement, sets the unit value of a fundamental physical quantity


    the first international standar of unit of length, indicated by a metal bar with inscribed marks


    the SI unit of mass


    defined as 9,192,631,770 vibrations of the cesium- 133 atom

    dimensional analysis

    the technique that uses conversion factors that are equal to or approximately equal to 1 as a series of multiplied fractions to cancel out unwanted units and leave the desired units

    significant digits

    digits that convey information about the actual time of what you are measureing

    exact number

    result of simple counting


    a measurement that may be defined as the closeness to the actual value


    series of measurements may be defined as their closeness to each other


    the precision of a measuring instrument

    mean value

    all measurements of the same mass should differ no more than 0.000 001 g above or below the average

    error of measurement

    the amount of inaccuracy in a measurement

    systematic error

    some cause that affects every measurement in the same way

    random error

    cannot be eliminated and can include a host of unpredictable and uncontrollable factors in the shifting background of measurement

    literal equation

    an equation with variables standing for quantities


    when one fraction is equal to another fraction

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