It depends on what you mean by size: its length, volume, surface area or even its mass.
"Magnitude" is the size or distance. Its measure depends on the metric that is defined on the relevant space.
If you measure area by means of the metric system, you might be using square centimeters or square meters or square kilometers, depending upon the size of the area that you are measuring.
that would be the centimetre
No
You would use a tool to measure the lengths of the sides or radii of the area and then use a formula to convert the lengths into an area. The tool would depend on the size of the object and the precision required. The tool could be an electron microscope, or a ruler, or a telescope and in general there would be no difference between a tool used to measure in the metric system or the imperial system. As an example of an unusual tool to measure area... in certain types of chemistry, the chemist needs to measure the area under a peak on a graph, and the traditional way of doing that is to cut the peaks out of the graph and weigh it on an analytical balance. Assuming the paper is fairly consistent in terms of density, the ratio of the weights is the same as the ratio of the areas.
That will depend on if you are measuring American letter size or Metric letter size (used in the rest of the world). American use inches, Metric use centimeters.
Either grams or kilograms - depending on the size of the potato.
That will depend on if you are measuring American letter size or Metric letter size (used in the rest of the world). American use inches, Metric use centimeters.
I would say that the size of raindrop determins the shape along with the amount of gravity!!!
A metric ruler measures in inches and centimeters.
there are many instruments used to measure length depending upon the size of object , Ruler is Metric instrument used to measure length. Screw gauge is also used as an instrument used to measure length in mm.
Depending on the size of the raindrop and the wind speed, updrafts, downdrafts a raindrop can fall at the speed of light. The previous answer was obviously written by an idiot. A raindrop will fall at usually 3 to 8 metres/second. A raindrop will never ever be able to travel at the speed of light.
-- Gram . . . used to measure the mass of little things -- Kilogram . . . used to measure the mass of medium-size things -- Metric ton . . . used to measure the mass of enormous, heavy things
You would probably measure a keyboard in centimeters (cm).
"Magnitude" is the size or distance. Its measure depends on the metric that is defined on the relevant space.
In the world of science, there are 20 drops of water in a milliliter. If you consider a drop to be what comes out of, say, a pipette, the size of that drop may vary. So does the definition of a drop: see the discussion at link below. The most common usage for a "drop" would be the metric drop, which is .05 ml. The older English usage of minim is slightly larger than the metric drop, but that usage is archaic. A liter does equal ~2.11 pints, so there are 1000/2.1133764 ml in a pint, which = 473.17 ml per pint. At 20 drops per ml, that means that there are 9463.5 drops in a pint.
Any square unit you like can be used to measure the area of a postcard, however to make the numbers have a reasonable size and ease of handling, I would suggest using square centimetres as a postcard is about hand size (and likely to be about 15cm by 10cm).