Mass is a measure of inertia
The variable that affect mass of a body is the amount of matter present in the body
The reason for arriving at the above statement is as follows:
Mass is the property of a body that indicates the quantity of matter contained in the body and also a measure of the body's resistance to acceleration
In an experiment to determine the variables that affect mass, using a weight balance and paper clips, the observation is that as the quantity of the paper clips are increases on one side of the balance, the balance tilts lower on the side bearing the larger number of paper clips indicating a larger mass
Therefore, the variable that affect mass is the quantity of matter (material) present
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