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10 terms

OCHS POS ch1.3

PH ch1.3 measurement
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scientific notation
way of expressing a number as the product of a number between 1 and 10 and a power of 10
length
straight line distance between 2 points; measured in meters
mass
the quantity of matter in an object; base unit is kg
volume
amount of space taken up by an object; measured in liters or cubic meters
density
ratio of an object's mass to its volume
precision
a gauge of how exact a measurement is
significant figures
all known digits in a measurement plus one estimated digit
accuracy
closeness of a measurement to the actual value of what is being measured
thermometer
instrument that measures temperature
SI
set of measuring units used by scientists