earth sci (fundamental quantities)

measurement of length

measurement of mass

• meters

• kilogram

• pounds

• seconds

measurement of time

• pounds

• seconds

• kilogram

• meters

units can only be easily reproduced due to well defined specifications

which of the following is a fundamental quantity

• density

• temperature

• force

• volume

smallest amount of quantity that an instrument can measure

• least count

• accuracy

• precision

• random errors

how close a measured value is to the actual value

degree of closeness among the measurements

something is wrong with the instrument itself (poorly calibrated, doesn't initially read zero)

• systematic errors

• random errors

environmental influences also affect the data

• random errors

• systematic errors