I performed an experiment in which a mass was hung from a spring. I want to refer to the mass of the mass hung from said spring, but that leads to quite a few awkward sentences. I cannot refer to the mass as a weight, since masses and weights are two different things. Is there some alternate way of saying "The mass of the mass"?
Be specific and describe exactly what you did when you performed the experiment. You can also start your description by categorizing or number the masses. For example: Mass A and Mass B.