Use the one that results in the most convenient number.
Since you don't know which one that is until you do the measurement, it's perfectly acceptable to perform the measurement in any unit, and then when you see what you have, you can convert it to any other unit that produces a more convenient number.
Example:
One morning after my shower, in order to weigh myself, I climb onto my postage scale, which is graduated in grams. My weight is equivalent to a mass of 86,636 grams.
This is an inconvenient number to remember, carry around on a little scrap of paper, and report to my doctor, so I want to convert it to a more convenient number. I'll convert it to milligrams.
1 gram = 1,000 milligrams.
86,636 grams = (86,636 x 1,000) = 86,636,000milligrams.
That's even worse ! I can't remember that, and if I write it down, chances are I'll make a mistake before I finish writing it. I'd better try something else. I'll try kilograms.
1,000 grams = 1 kilogram
86,636 grams = (86,636 / 1,000) = 86.636 which I'll round off to 86.6 kilograms.
Finally ! That's a number I can remember. Plus ... it's easy to write down, easy to say, easy to tell someone else, and easy for him to remember and write down. AND ... the error introduced by rounding it off is less than 0.05% of the real number that I read on the scale, which won't hurt anything.
As far as I can tell there is no such thing as a canalop! So it does not matter whether you use grams or kilograms - the measure will be zero in either case.
This question cannot be answered for the following reasons: 1. There are no units for the mass of the rock. It could be 212 kilograms, pounds, tons etc. 2. The volume cannot be measured in g - which stands for grams (a measure of mass). It is not possible to determine whether the volume is in litres, cubic feet or any other measure.
The question seems to mix units of mass (kilograms) with units of length (feet), which are not directly convertible. Kilograms measure weight, while feet measure distance. To provide a meaningful answer, please clarify whether you're asking about a specific context, such as the weight of an object that occupies a certain volume or the conversion of a different measurement.
The answer depends onwhether you want to measure the can itself, or its contents;whether you wish to measure its mass or volume (or something else).The answer depends on whether you want to measure the can itself, or its contents;whether you wish to measure its mass or volume (or something else).The answer depends on whether you want to measure the can itself, or its contents;whether you wish to measure its mass or volume (or something else).The answer depends on whether you want to measure the can itself, or its contents;whether you wish to measure its mass or volume (or something else).
Grams and seconds are two completely different units of measure. Grams measure weight and seconds measure time. Therefore, there is no way of telling whether one is smaller than the other. However, grams are smaller than kilograms and seconds are smaller than minutes. ;)
Milligrams (mg) would most likely be used to measure the medicine in a pill.
determine whether they are expanding or contracting
Measure it with a voltmeter.
As far as I can tell there is no such thing as a canalop! So it does not matter whether you use grams or kilograms - the measure will be zero in either case.
The answer depends on the units which were used for the amount. The answer, in kilograms will be different according to whether the units were grams, pounds, tons or some other measure.
A grain of salt is typically measured in milligrams (mg) or micrograms (mcg). One grain of salt is equivalent to approximately 58 milligrams.
The answer depends on whether you mean 8.74 milligrams, micrograms, pounds, tons, ounces or whatever.
To determine whether the reaction was exothermic (gave off heat) or endothermic (absorbed heat).
This question cannot be answered for the following reasons: 1. There are no units for the mass of the rock. It could be 212 kilograms, pounds, tons etc. 2. The volume cannot be measured in g - which stands for grams (a measure of mass). It is not possible to determine whether the volume is in litres, cubic feet or any other measure.
The question seems to mix units of mass (kilograms) with units of length (feet), which are not directly convertible. Kilograms measure weight, while feet measure distance. To provide a meaningful answer, please clarify whether you're asking about a specific context, such as the weight of an object that occupies a certain volume or the conversion of a different measurement.
The composition of the rock will determine whether it is a rhyolite or an andesite.
You could use centimeters or millimeters to measure the length of a leaf.