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The word weight in every day speech means how much do you weigh converted back to mass. That is if I ask "what do you weigh?" but I want the answer in pounds or kilograms.

In science mass is measured in kilograms (or pounds outside the science lab) but weight has more to do with the gravitational pull of the Earth.

Newton's second law is F = ma

Force = mass x acceleration

Weight = mass x acceleration due to gravity

W = 50 kg x 9.8 m/s2 (Force or Weight has a unit of Newtons, N)

= 490 N

Why? Perhaps because when we use the balance or the weighing machine we are using gravity but then we convert the scale back to mass.

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13y ago
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13y ago

Mass is how much matter is in an object and weight is how much force of gravity is pulling an object.

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Q: Why do scientist use mass instead of weight?
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Why don't scientist use weight instead of mass as a measurement?

Weight is not a physical property of an object, it is an effect, which varies from place to place. A given object will have the same mass no matter whether it is on the Earth, or on Mars, or somewhere in between.


Does the shape of an object determine mass?

No. Mass is the weight of an object on earth. Scientists use mass instead of weight so the measurements will be the same everywhere. For example A big ballon has a relatively lower mass than a small sized stone


Do scientist use mass as a measurement?

yes


Why do scientist use the unit mass instead of saying weight?

Mass doesn't change where ever the object or thing is but weight changes depending on where it is(depends on acceleration due to gravity-g) Eg: Mass of object doesn't change either it is on moon or earth but weight changes(on moon it is 1/6 of that on earth).


Why do scientist use weighted average instead of straight mathematical average of masses of isotopes to indicate the atomic mass of an element?

The percentage of each isotope is different.


What do scientist use to measure mass?

They use a tri beam scale.


What to scientist use to measure mass?

They use a tri beam scale.


Why do scientist measure and record the mass other than the weight?

The mass is a measure of the amount of matter present in an object whereas weight is a measure of the force on the object due to gravity. Weight is measured in Newtons, mass is measured in kilograms (pounds in the Imperial system) When we use the term weight outside of science we actually are referring to mass. mass is a measure of 'stuff,' of material that makes up an object. weight is the gravities affect on mass as you can see from the equation Fg=mg, m=mass g=gravity (on earth it is 9.8) and fg is weight in newtons


Life Scientist use kilograms when measuring an object's .?

mass


How do you find out a weight in mass?

You use the formula weight = mass x gravity. In SI units, the gravity is 9.8 meters per second square, weight is in Newtons, mass is in kilograms.You use the formula weight = mass x gravity. In SI units, the gravity is 9.8 meters per second square, weight is in Newtons, mass is in kilograms.You use the formula weight = mass x gravity. In SI units, the gravity is 9.8 meters per second square, weight is in Newtons, mass is in kilograms.You use the formula weight = mass x gravity. In SI units, the gravity is 9.8 meters per second square, weight is in Newtons, mass is in kilograms.


Which instrument would a scientist use to out an exact mass of a dry chemical?

A Scientist would use a balance, either triple-beam or electronic.


How do you get weight if you know the mass of something?

Use the advanced search tool and search on weight and mass.