is a comparison of a dimension of an object or substance to an appropriate standard, usually an instrument with a calibrated scale.
any artificial device made for the purpose of refining, extending or substituting for the humans senses when measuring
has two parts:
1) a number that gives the size of the measurement
2) dimensional unit
is a flawed perspective on data that results from a person's desire to see a certain outcome
a more precised(exact) observation, more accurate-(it is not possible to be exact, but close)
Le Système International d'Unités, or the International System of Units, which is the measurement system that is accepted worldwide...METRIC SYSTEM
significant digit (SD)
a digit in the measurement used to communicate the precision of the measurement.
a convenient way to express very large or small numbers in the form of M x 10, an expression of numbers in the form m × 10n where m is equal to or greater than 1 and less than 10, and n is an integer, a way of writing very large or very small numbers using a number between 1 and 10 multiplied by a power of ten
an instrument that measures weight by balancing the pull of the earth's gravity on the object being weighed
an electronic instrument that measures the weight of an object and then displays is equivalent mass
an instrument that compares a known mass to an unknown mass. when balanced the weight of the object with unknown mass equals the weight of the known mass.
object to be weighed is placed on a metal plate on top of the instrument. the scale converts the pull of gravity on the object into an electronic signal - weight is displayed on a digital screen.