The gravitational forces in each direction between the Earth and a sample of matter
are equal. The force exerted on the sample by the Earth is what we call the "weight"
of the sample. The force exerted by the sample on the Earth is the one that nobody
ever mentions, but it's also equal to the weight of the sample. In other words, the
weight of the sample on Earth is equal to the weight of the Earth on the sample.
The sample's weight.
gravity
Mass measures the amount of matter in a sample.
Mass
volume... really?
Potential energy is calculated as mass x gravity x height. Gravity is 9.8 meters per second square.
In SI units we use the term mass rather than the more familiar term weight. Mass is a measure of the amount of matter in a particular sample. The mass of a sample does not depend on its location; it is the same whether measured on Earth, on the moon, or anywhere in space. Weight is a measure of the pull of gravity on a sample and depends on where the sample is weighed.
Porosity is measured by taking a sample of the soil. The sample is then tested to measure the speed of water passing through the soil.
random sample or probability sample
sugar granules is the sample matter
a core sample
Yes!
It seems reasonable to assume it does, but it has not been possible to get a large enough sample (or have measurements accurate enough) to confirm how it reacts to gravity.