Q&A for How to Measure Mass

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  • Question
    Can you explain what mass of a body means?
    Community Answer
    It means how many particles are in that object. It is the weight in Newtons of the object divided by the acceleration due to gravity.
  • Question
    How do I use the beam balance to measure the mass of a body?
    Community Answer
    Have your subject stand on the scale, then slowly move the slider on the beam until it is level and balanced.
  • Question
    How do I calculate mass using density?
    Community Answer
    Density equals mass divided by volume. Therefore, mass would equal density multiplied by volume. You will need the volume along with the density to calculate the mass.
  • Question
    How do I calculate mass into weight?
    Community Answer
    You simply multiply the mass by 9.78, then you will get your answer. Its units will be in newtons (N).
  • Question
    A motorbike accelerates from rest to 12 m/s in 3 seconds on a level road. If the force is 3000 Newton, what is the total mass of the cyclist and the motorbike?
    Community Answer
    We know that F = ΔQ/Δt, so let's go from there. We also know that F = 3000 N, v = 12 m/s, and Δt = 3 s. So what we have is 3000 = ΔQ/3. ΔQ = Q2 - Q1 and Q = mv. So Q1 = 0, because the motorbike accelerates from rest (v1 = 0), and Q2 = 12m. ΔQ = 12m - 0 = 12m. We now have 3000 = 12m/3, 3000 = 4m, m = 750 Kg.
  • Question
    How do I find out mass? Is it measured by newtons?
    Community Answer
    No, mass is not measured in newtons. Weight is measured in newtons, because it is a force that is acting on the body. The units that describe mass are grams and kilograms, with kilograms being the S.I unit. You can use the formula f=ma to find mass with a formula.
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