On the moon, would a weighing scale measuring in kg be technically wrong?
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On the moon, would a weighing scale measuring in kg be technically wrong?

[From: ] [author: ] [Date: 14-02-25] [Hit: ]
8 N. Through this definition we easily determine (and commonly identify) mass by measuring its weigh: a mass of k kg will weigh k kp, but only in earth surface. To generalize this to moon surface it would be necessary to define a new kp: the one that appears on a mass of 1kg in the moon surface, and whose value equals to moon gravity acceleration: 1.7 N.......
Well, it depends of what you mean by a scale measuring in kg. Technically, the standard scale measuring in kg refers to kp: 1 kp is the gravitational attraction force that appears on a mass of 1 kg in earth surface, and whose value (newtons) equals to earth gravity acceleration (ms^-2): 9.8 N. Through this definition we easily determine (and commonly identify) mass by measuring its weigh: a mass of k kg will weigh k kp, but only in earth surface. To generalize this to moon surface it would be necessary to define a new kp: the one that appears on a mass of 1kg in the moon surface, and whose value equals to moon gravity acceleration: 1.7 N.

Anyway, and considering that mass not depends on gravity, if by a scale measuring in kg you mean a system that measures mass without consider gravitational effects then such a scale would be technically right.

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Are you trying to weight cow urine on the moon. Why would you take a scale to the moon!?

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Technically the Kg is a measure of mass so it would be the same everywhere. You need to use Newtons.

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Yes, because kg is a mass. The device measures force but it has been scaled to read kg when on Earth.

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Yes if you expect to measure mass, the intrinsic quantity of how much matter is present.

No if you are measuring weight. To measure the weight, multiply the kg reading by the gravitational field, which is usually 9.8 m/s^2 here, but is something like 1.7 m/s^2 on the moon's surface.
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