Precise measurement of weight refers to repeated measurements taken for the weight of an object, in which all the results are very close to one another. They could all be wrong by the same value.
For example, suppose you have a pair of kitchen scales which show 100 grams when there is nothing on them. Suppose you weigh a single bag of flour several times. The results may be 601g, 600g, 601g, 602g, 599g. The results are all within 1 gram of 600 g indicating a high degree of precision. But a totally useless result since the result is not accurate: the true weight is 500 grams, and the zero error has displaced each measurement.
Actually, the weights should be given in Newtons (or millinewtons), not grams, which is a unit for measuring mass, but for the sake of simplicity I have indulged myself.
What determines how precise a measurement is
It is precise if it is repeatable.
tenth of a gram
Is as exact as possible
The precise measurement is 5.7 mm for the first value and 3.6 m for the second value.
cc
No. An answer is only as precise as the least precise measurement from which it was calculated.
What determines how precise a measurement is
It is precise if it is repeatable.
The objects weight is a measure of that force.
You can make a very precise measurement with a poorly calibrated device.
No. Accurate relates to how close the actual measurement the instrument measures. Precise relates to how much detail the instrument gives when measuring. They are independent to each other: An measurement can be precise and accurate (eg the value of π is 3.141592654) An measurement can be precise and inaccurate (eg the value of π is 1.733677432) An measurement can be less precise and accurate (eg the value of π is 3.14) An measurement can be less precise and inaccurate (eg the value of π is 1.73).
measuring tape
19.2cm is more precise
An automatically measurement has a higher precision than a manually measurement.
Is as exact as possible
tenth of a gram