SI Units and Conversions & Density
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18 Terms
Base SI Units
Meter, kilogram, mole, kelvin, and second.
Meter
Length and m
Kilogram
Mass and kg
Kelvin
Temperature and K
Second
Time and S
Mole
Amount of substance and mol
Units of length
The size of matter
common metic units-meters, centimeters, kilometers
Units of volume
Space occupied by any sample of matter
liters, milliliters, cm^3
Weight
The measure of the force of gravity on an object
Mass
The measure of the amount of matter in an object
The weight of an object...
can change depending on where you are, but matter will remain constant.
Kelvin temperature
273 k freezing
373 k boiling
*will always be positive
Celsius
0 freezing
100 boiling
Absolute zero
0K, lowest temp possible when motion of particles stops
Conversion factor
A ratio of equivalent measurements
Dimensional analysis
A way to analyze and solve problems using the units or dimensions of the measurements
Density
the ratio of the mass of an object to its volume
density is intensive, it depends on the composition of the substance not the size.
Density and temperature
The density of a substance generally decreases as its temperature increases
volume of most substances increases as the temperature increases
Note 
Flashcards (49)