When does one pound of one thing not weigh the same as one pound of another?
99693
A pound of butter would weigh more than a pound note (Money)
1101437
1) One kilogram is equivalent to 0.001 tonnes (metric) (European: tonne)\nOne metric tons is to 1000 kilogram\n\n\n2) One kilogram is equivalent to 0.001102311310924388 tons (United States measurement also known as a short ton)\nOne tons is to 1000 kilogram907.18474
31946
reverie's wrong.  Most mass actually comes from kinetic energy, not rest mass.  you can correcly give energy (including heat energy) the same units as mass so it makes sense to say "one pound of heat"... but force is something different entirely.
103036
We often use the terms "mass" and "weight" interchangeably in our daily speech, but to an astronomer or a physicist they are completely different things. The mass of a body is a measure of how much matter it contains. An object with mass has a quality called inertia. If you shake an object like a stone in your hand, you would notice that it takes a push to get it moving, and another push to stop it again. If the stone is at rest, it wants to remain at rest. Once you've got it moving, it wants to stay moving. This quality or "sluggishness" of matter is its inertia. Mass is a measure of how much inertia an object displays. \n\nWeight is an entirely different thing. Every object in the universe with mass attracts every other object with mass. The amount of attraction depends on the size of the masses and how far apart they are. For everyday-sized objects, this gravitational pull is vanishingly small, but the pull between a very large object, like the Earth, and another object, like you, can be easily measured. How? All you have to do is stand on a scale! Scales measure the force of attraction between you and the Earth. This force of attraction between you and the Earth (or any other planet) is called your weight. \n\nhttp://www.exploratorium.edu/ronh/weight/
449872
The both weigh the same
1074154
They weight the same.
624604
i have the most accurate answer\n\n1 pound = 0.45359237 kilograms\n\n1 kilogram = 2.20462262 pounds
990209
1 pound = 0.454 kilograms
1130285
I think the equation W = m x g (W = weight; m = mass; g = acceleration due to gravity) might address your question.\n\nStating they are interchangeable might be misleading if the statement is not qualified by your textbook. The qualification is that when we are measuring objects from an earth reference point, for all intents and purposes, the weight of an object is proportional to its content (i.e., mass). In mathematical terms, the assumption would be, W = m * 1. \n\nHowever, if we are measuring objects in places other than from an earth reference point, then weight and mass are not interchangeable. For example, the force of gravity on the moon is less than on earth. So as an example, the equation for weight on the moon could be, W = m * .5. With this equation, the weight of an object on the moon is less than its weight on the earth. Here is a math example to illustrate:\n\nObject (Mass) = 100 Kg\ng(Earth) =  1 \ng(Moon) = .5\n\nW(Earth) = 100 x 1\n              = 100 Kg (Object's weight on earth)\n\nW(Moon) = 100 x .5\n              = 50 Kg (Object's weight on moon)\n\nWikipedia might explain the notion of interchange between weight and mass better:\n\nhttp://en.wikipedia.org/wiki/Weight#Weight_and_mass
719024
1 inch = 2.6cm\n1 pound is +/- 500gramms
476205
It could mean you are losing, fat or water. It could also mean that you are gaining muscle which is heavier than fat so a scale could tell you that you weigh the same even though you have lost fat and gained muscle mass.
881632
Mass of an object never changes unless it is changed physically.\nMass has something to do with matter.  Weight will change, which is first decided by the amount of gravity.
400144
1 pound = 408.6  grams
349993
1 Kip = 1 Kilo pound = 1,000 pounds
32418
1 inch ~ 2.54 cm\n1 ft ~ 30.48 cm\n\ntechnically, a pound (lb) and grams/kilograms do not measure the same thing. a pound is a measure of weight (a force) while a gram is a measure of mass.  At sea level on earth, where gravity is about 9.81 m/s^2, a mass of 1 kg would approximately have 2.2 lb of weight.  But for basic science classes, this is assumed to be interchangeable
33590
I am going to offer a different aspect to this. I am wondering if you gained a pound and wodnering why it happened? I may be wrong, but here goes. Your weight can fluctuate naturally due to things like water weight, and 1 pound in a day could be just that. Or if your scale is one that rounds, it may be not a full pound, but it rounded up to one.
688694
1 pound = 0.45359237 kilogram\n\nUse the link below to get other conversions!