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Can you define mass? - Answers

This is a much more complicated question than it appears. In everyday use, and indeed for most science upto A-level, the intuitive notion of 'amount of stuff' works pretty well - things with more mass have got more 'stuff' in them. At a higher level there are several different but equivalent definitions. In mechanics you define mass as a measure of the resistance of an object to acceleration; when dealing with high speeds or high precisions you can use E=mc^2 to describe mass in terms of the energy of an object; you can describe mass as 'gravitational charge', measuring how strongly an object is influenced by gravity. There are also several quantum definitions. Note: mass should not be confused with weight! Mass measures the amount of material present but weight measures how strongly an object is affected by gravity: your weight pulls you down to the surface of the planet when you jump and would be less on the moon (which has a weaker gravity field) whereas your mass would be the same. Mass is measured in kg and weight (as a force) in Newtons. On earth the gravitational field strength, g, is about 10 so 1kg=10N on earth. On the moon 1kg would have a weight closer to 2N.



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Can you define mass? - Answers

https://math.answers.com/math-and-arithmetic/Can_you_define_mass

This is a much more complicated question than it appears. In everyday use, and indeed for most science upto A-level, the intuitive notion of 'amount of stuff' works pretty well - things with more mass have got more 'stuff' in them. At a higher level there are several different but equivalent definitions. In mechanics you define mass as a measure of the resistance of an object to acceleration; when dealing with high speeds or high precisions you can use E=mc^2 to describe mass in terms of the energy of an object; you can describe mass as 'gravitational charge', measuring how strongly an object is influenced by gravity. There are also several quantum definitions. Note: mass should not be confused with weight! Mass measures the amount of material present but weight measures how strongly an object is affected by gravity: your weight pulls you down to the surface of the planet when you jump and would be less on the moon (which has a weaker gravity field) whereas your mass would be the same. Mass is measured in kg and weight (as a force) in Newtons. On earth the gravitational field strength, g, is about 10 so 1kg=10N on earth. On the moon 1kg would have a weight closer to 2N.



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https://math.answers.com/math-and-arithmetic/Can_you_define_mass

Can you define mass? - Answers

This is a much more complicated question than it appears. In everyday use, and indeed for most science upto A-level, the intuitive notion of 'amount of stuff' works pretty well - things with more mass have got more 'stuff' in them. At a higher level there are several different but equivalent definitions. In mechanics you define mass as a measure of the resistance of an object to acceleration; when dealing with high speeds or high precisions you can use E=mc^2 to describe mass in terms of the energy of an object; you can describe mass as 'gravitational charge', measuring how strongly an object is influenced by gravity. There are also several quantum definitions. Note: mass should not be confused with weight! Mass measures the amount of material present but weight measures how strongly an object is affected by gravity: your weight pulls you down to the surface of the planet when you jump and would be less on the moon (which has a weaker gravity field) whereas your mass would be the same. Mass is measured in kg and weight (as a force) in Newtons. On earth the gravitational field strength, g, is about 10 so 1kg=10N on earth. On the moon 1kg would have a weight closer to 2N.

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      This is a much more complicated question than it appears. In everyday use, and indeed for most science upto A-level, the intuitive notion of 'amount of stuff' works pretty well - things with more mass have got more 'stuff' in them. At a higher level there are several different but equivalent definitions. In mechanics you define mass as a measure of the resistance of an object to acceleration; when dealing with high speeds or high precisions you can use E=mc^2 to describe mass in terms of the energy of an object; you can describe mass as 'gravitational charge', measuring how strongly an object is influenced by gravity. There are also several quantum definitions. Note: mass should not be confused with weight! Mass measures the amount of material present but weight measures how strongly an object is affected by gravity: your weight pulls you down to the surface of the planet when you jump and would be less on the moon (which has a weaker gravity field) whereas your mass would be the same. Mass is measured in kg and weight (as a force) in Newtons. On earth the gravitational field strength, g, is about 10 so 1kg=10N on earth. On the moon 1kg would have a weight closer to 2N.
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