Kilograms.
kilograms
You find a measure of the amount of matter in the rock.
Direct measurement is when an object or something can be directly measured, meaning that you can actually pick it up and measure the sides (such as a box) Something that wouldn't be classified to be directly measured is something like a rock, where you need to use Indirect measurement to measure it, like dropping a rock in a container with water, and see how much the water rises. See related link below for more information
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.
A kg is a measure of mass, a cubic meter is a measure of volume, so without a way to convert from one to the other (in this case a mass density), the question has no meaning. If you were considering something with a density of about 1 gram per cm, like water, then the answer would be 1000 kg (a metric tonne), but if the substance were 5 grams per cm, like rock, then the answer would be 5000 kg
Kilograms.
kilograms
you would use mass
If you measure its mass you will have the answer.
You find a measure of the amount of matter in the rock.
Not always easy. Since density is defined as the mass of a unit volume of material,you would measure the volume of the rock by putting it into a container half filled with water and then measure the volume change.
You use a triple-beam scale to measure mass.
Yes. Kilogram is the unit of mass.
We would use a ruler to measure the length of a rock. Then, when we were ready to write down the result of the measurement, or tell someone else about it, we would pick the best unit of length to use. The best one would be the unit that results in the most convenient number. For a tiny rock, the "millimeter" might be best. For a medium rock, the "centimeter" might be best. For a large rock, the "meter" might be best. A really humongous rock, such as the moon, might warrant the use of the "kilometer".
Sonic velocity, which is a petro-physical measurement made on rocks, is the measure of how fast the molecules are actually moving in the structure of the rock. It measures how dense a rock or mineral is.
I would use a laboratory balance, or scale to measure 10.5g of rock salt.
Weight is a measure of force that is dependent on the physical environment the object is in. For example: A rock on earth may weigh 50 newtons, but on the moon, due to there being less gravity, will weigh 20 newtons. Mass stays the same no matter what the environment the object is in, so a rock on Earth may weigh 100 kilograms, but on the moon it will weigh 100 kilograms as well. Units for Mass: Grams (g), Kilograms (kg), Pounds (lbs) etc. Units for Weight: Newtons (n)