Mass and Weight

Main Question or Discussion Point

Sorry for the unoriginal question but what is the differnece between mass and weight? Its been bothering me lately Does mass change? What exactly is mass?

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Check wikipedia:
In modern scientific usage, however, weight and mass are fundamentally different quantities: mass is an intrinsic property of matter, whereas weight is a force that results from the action of gravity on matter: it measures how strongly gravity pulls on that matter.
So your weight on the moon is less albeit your mass is the same.

What is mass?
Mass is the m in $$F=m\cdot a$$
And Mass is what causes gravity.

Mass is where the search ends, we haven't discovered some inner mechanism that produces it.

What do the veriables mean in the formula?

ZapperZ
Staff Emeritus