# How Are Mass and Weight Related?

The relation between mass and weight is defined by Newton's 2nd Law: F (force)= m(mass) x a(acceleration (m/s2). Mass is a measure of the amount of material in an object, being directly related to the number and type of atoms present in the object. Mass does not change with a body's position, movement or alteration of its shape, unless material is added or removed. Weight is the gravitational force acting on a body mass.
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Q&A Related to "How Are Mass and Weight Related?"
 Weight is defined as the measure of gravitational force that is exerted on a body or the mass of that body. Mass is a measure of how much matter is actually in that object. http://www.ask.com/web-answers/Science/Physics/how...
 They both change as the other dose. Mean as mass changes, so will weight, and as weight changes, so will mass. http://wiki.answers.com/Q/How_are_weight_and_mass_...
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