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16 Cards in this Set

  • Front
  • Back

Base Unit

Defined unit in a system of measurements that is based on an object or event in the physical world

Second (s)

SI base unit for time

Meter (m)

SI base unit for length

Kilgrams (Kg)`

SI base unit for mass

`

Kelvin( K)

SI base unit for temparature

Derived Unit

A unit that is defined by a combination of base units


Also measured in derived units (cm^3) and (g/cm^3)

Liter (L)

equal to one cubic decimeter (dm^3)


Liters are used to measure volume of liquids

Density

physical property of matter and is defined as the amount of mass per volume


Units (cm^3) and (g/cm^3)

Scientific Notation

Can be used to express any number as a number between 1-10 multipled by 10 raised to a power

Dimensional Analysis

Systematic Approach to problem solving uses conversion factors to move , or convert from one unit to another

Conversion Factor

Ratio of equivalent values having different units

Acuracy

How close a measured value is to accepted value

Precision

How close a series of measurements are to one another

Error

Defined as the difference betweenan experiemental value and an accepted value

Percent Error

Expresses error as a percentage of the accepted value

Graph

Visual display of data