Traditional Culture Encyclopedia - Photography and portraiture - Which is heavier, one kilogram of iron or one kilogram of cotton?
Which is heavier, one kilogram of iron or one kilogram of cotton?
A kilo of iron is as heavy as a kilo of cotton.
The density of iron is different from that of cotton. The density of iron is about 7.85g/cm3, while that of cotton is about 0.2g/cm3. This means that the volume of iron and cotton with the same weight is very different.
When iron and cotton weigh 1000 kilograms, they have the same weight, but different volumes. In this case, the weight considered is the same, but the volume considered is different.
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