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Measurements and Problem Solving
Flashcards for vocabulary words from Chapter 2 Measurements and Problem Solving
20
Chemistry
Undergraduate 1
09/16/2013

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Term
Conversion Factor
Definition
A factor used to convert between two separate units; a conversion factor is constructed from any two quantities known to be equivalent.
Term
Decimal Part
Definition
One part of a number expressed in scientific notation.
Term
Density
Definition
A fundamental property of materials that relates mass and volume and differes from one substance to another. The units of density are those of mass divided by volume, most commonly expressed in g/cm3, g/ml or g/L.
Term
English System
Definition
A unit system commonly used n the United States.
Term
Exponent
Definition
A number represents the number of times a term is multiplied by itself. For example, 2 x 2 x 2 x 2 would be represented by 2 with an exponent of 4.
Term
Exponential Part
Definition
One par of a number expressed in scientific notation; it represents the number of places the decimal point has moved.
Term
International System
Definition
The standard set of units for scientific measurements, based on the metric system.
Term
Kilogram (kg)
Definition
The SI standard unit of mass
Term
Liter (L)
Definition
A derived unit used to express volume. A gallon in equal to 3.785 liters. A milliliter is equivalent to 1cm cubed.
Term
Mass
Definition
A measure of the quantity of matter within an object.
Term
Meter (m)
Definition
The SI standard unit for length.
Term
Metric System
Definition
The unit system commonly used throughout most of the world.
Term
Prefix Multipliers
Definition
Prefixes used by the SI system with the standard units. These multipliers change the value of the unit by powers of 10.
Term
Scientific Notation
Definition
A system used to write very big or very small numbers, often containing many zeros, more compactly and precisely. A number written in scientific notation consists of a decimal part and an exponent part (10 raised to a particular exponent).
Term
Seconds
Definition
The SI standard unit for time.
Term
SI Units
Definition
The most convenient system of units for scientific measurements, based on the metric system. The set of standards agreed on by scientists throughout the world.
Term
Significant Figures (digits)
Definition
The non-place holding digits in a reported measurement; they represent the precision of a measured quantity.
Term
Solution Map
Definition
A visual outline that shows the strategic route required to solve a problem.
Term
Units
Definition
Previously agreed-on quantities used to report experimental measurements. Units are vital in chemistry.
Term
Volume
Definition
A measure of space. Any unit of length, when cubed, becomes a unit of volume.
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