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# How are mass and weight related to each other?

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Mass and weight are closely related because mass affects the weight of an object experiencing the effects of gravity. Weight is the measure of the force of gravity on an object's mass, while mass is the measure of how much matter there is in an object.

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An object's weight is calculated as the mass of an object in kilograms multiplied by the acceleration of gravity exerted in meters per second squared. The resulting number is expressed in newtons, named for Newton's second law of motion. An object's mass is determined by comparing it to an object with a known mass on a balance. An object with a mass of 1 kilogram would weigh 9.8 newtons on Earth, yet it would weigh essentially nothing in space while still having a mass of 1 kilogram.

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## Related Questions

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A mass structure is a structure that is made by combining similar materials into a certain shape or design. Mountains are an example of a natural mass structure, and brick walls are an example of a man-made mass structure.

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Droplets of water do not have a consistent mass because a droplet is not a regular unit of measurement. Mass can be found by depositing drops or droplets of water on a level scale and then calculating the mass in grams.

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The law of conservation of mass states matter can be changed from one form to another, but the total mass stays the same in an isolated system. If a group of items is mixed then the total mass is the same as the individual masses added together. Those items may change states, like liquid from a solid, but the mass of both states will be the same.