Is Mass a fundamental dimension?

Question

Is mass a fundamental dimension? I did a dimension analysis on mass, which get the reason that Mass is a function of charge, magnetic field and time. So, is mass a fundamental dimension?

Answer 1

Mass is not a function of charge, magnetic field or time. You better check your analysis.

Answer 2

This is what dimensional analysis is
http://www.physics.uoguelph.ca/tutorials/dimanaly/

"Most physical quantities can be expressed in terms of combinations of five basic dimensions. These are mass (M), length (L), time (T), electrical current (I), and temperature, represented by the Greek letter theta (q). These five dimensions have been chosen as being basic because they are easy to measure in experiments. Dimensions aren't the same as units."

Mass is the amount of matter an object has and it has been chosen in dimensional analysis as one of the fundamental dimensions.

You worked out the relationship between mass, charge, magnetism and time this does not prove or disprove anything about mass being a fundamental dimension

Answer 3

i think the best response i can give is
"Mass CAN be a fundamental dimension"

the only reason to choose one fundamental over another is for simplicity.

currently mass is a fundamental dimension in the SI however there are possible plans to define mass as a function of "space and substance" this is defining mass in terms of the size of a particular crystal of a particular element.

there is also the possibility of defining mass in terms of charge vs gravitational.

there is still one final concern regarding mass,
is inertia equal to mass
so far this has agreed with experiment but it is important to keep in mind that inertia and mass are defined differently.

Answer 4

Mass is a surface count of Higgs particles that fully pack that surface as ball bearings that provide least friction, lowest possible energy state for the spinning/vibrating volume of dark matter enclosed by the mass surface. Mass is not a volume quality but an energy surface quality and is not a fundamental dimension like space and time. The Higgs particle serves as surface defining spinning/vibrating mass point = math point of the energy surface and the spin/vibtration motion of the math point energy provides space-time-enstangled dimension of time.

Answer 5

Mass is not a dimension.
Mass is the result of an evolving universe that came into existence along with the emergence of matter.

Answer 6

You are confusing dimensions with units of measurement. This is caused by the unfortunate choice of words for 'dimensional analysis'. Dimension is most properly and clearly used for measurements in spacetime along independent (perpendicular) axes. In our familiar 3-dimensional world, that's 3 spatial dimensions and one temporal.

In any system of units of measure, you choose the smallest meaningful set possible as base units and define others in terms of them. in the SI metric system, mass was chosen as one of the base units.

Answer 7

Yes. Mass is a fundamental characteristic of matter and its measure is a fundamental dimension. In the International MKSC system, distance is measured in meters (M), mass is measured in kilograms (K), time is measured in seconds (S), and charge is measured in Coulombs (C).

HTH

Doug

Answer 8

Your textbook will explain it better than anyone here.