Measurement Flashcards
It is needed to formulate new concepts, theories, or laws, and verifying the existing ones.
Measurement
It is the process of comparing an unknown quantity to a standard quantity of the same physical dimension.
Measurement
It is the process of assigning numbers and the appropriate unit to a physical quantity.
Measurement
In taking scientific measurements, it is important that they are ______ and ________
precise, accurate.
It pertains to the degree of fineness of the measurement taking into account the ability of an instrument to measure small quantities.
Precision
It also pertains to the degree of agreement of the measured values; the closer the measured values to each other, the more precise the measurement.
Precision
It pertains to the degree of agreement of the measured value to the standard value; the close the measure to the standard value, the more accurate the measurement.
Accuracy
It indicates the nearness of the measured value to the standard value, hence it can be considered as a gauge of the accuracy of the measurement.
Percent error (%error)
It is related to the deviation of the measured value to the true value.
Errors
Errors can be classified as either _________ or ________.
Systematic, Random
It is when the measured values tend to be either always larger or always smaller than the true value.
Systematic error
It is caused by imperfect calibrations of an instrument or due to the varied response of an instrument to different environmental conditions.
Systematic error
It is due to the limitations of the measuring device used or the uncertainties in the reading.
Random error
The doubt that exists for every measurement; they are expressed by reporting measurements in intervals.
Uncertainty
The doubt that exists for every measurement; they are expressed by reporting measurements in intervals.
Uncertainty
