Ask a question

A.What is the mass of a pencil or pen?

A. What is the mass of a pencil or pen?

1 Answer by Expert Tutors

Tutors, sign in to answer this question.
Michael B. | Seasoned and experienced tutor with extensive science backgroundSeasoned and experienced tutor with exte...

The mass will depend on the amount of material that comprises the pencil or the pen. Mass is an intrinsic property that you can calculate by taking a measurement of the weight using the formula: w = mg. Where (g) is the acceleration on the mass due to gravity (provided it is "close" to the Earth's surface).

A couple of examples:

If a pen weighs 1 lb (a seriously heavy pen), then its mass would be

m = 1 lb/32 (ft/s2) = 0.03125 slugs   (slug is the unit of mass in the British system)

Likewise if a pen weighs 1 N, then its mass would be

m = 1N/9.81 (m/s2) = 0.1019 kilograms


It should be noted however, that people often misuse mass and weight interchangeably even though they are two discrete quantities. If you put a pen on a scale in the lab (due to the design of the scales used) you will get a readout that indicates a mass quantity in grams, but if you step on your own bathroom scale you will see your weight in pounds.

  1. That gave no good information what so ever what about the pencil I need to know about the pencil not the pen this website is stupid why did I click oh that's right it said answers to the mass of a pen and pencil you guys need to give more information and do not say that you put pencil cause you didn't