0.01mm
10000000000000000000
Yes.
Eratosthenes
Mathematically, yes, but in a science class there is something called significant figures which tries to represent the accuracy that is made in a measurement. So 4.80 means that a more accurate measurement was made than 4.8
because different people may have made slightly different mesurements. measurements are not 100% accurate
25mm
10000000000000000000
25mm
The smallest accurate measurement that can be made on a standard metric 25 50 mm micrometer is typically 0.01 mm or 0.001 cm. These micrometers are designed to read to the hundredth of a millimeter or the thousandth of a centimeter, providing relatively precise measurements.
Units of measurement aren't made up of anything. The smallest unit of measurement is the Plank unit - 10^-35m. The smallest sub atomic particle is a Neutrino, and it is made up of, a Neutrino!
Yes.
Eratosthenes
Never: A measurement made is always an approximation. We can get very close to being accurate with our measurements, but never fully 100% accurate. This is not the fault of the person measuring, or what tool they are using to measure with, but it is a natural law that we (anyone, even superior aliens to humans) cannot ever fully make an absolutely accurate measurement.
An accurate measurement is made with a pH-meter; pH-papers make only approximative determination.
Mathematically, yes, but in a science class there is something called significant figures which tries to represent the accuracy that is made in a measurement. So 4.80 means that a more accurate measurement was made than 4.8
Synonyms of "specific" and "precise" include accurate, detailed, explicit, stringent or rigorous. A precise measurement is one made with well-maintained equipment and using the correct methods in a careful manner.
because different people may have made slightly different mesurements. measurements are not 100% accurate