Question

which has more mass, a kilogram of feather or a kilogram of iron?

Answer 1

Answer:

Well asked....both of them have the same mass as it has been clearly mentioned that a kg of each has been taken so both of them have the same mass as acceleration due to gravity is constant so both have same mass

Answer 2

Their masses are equal.

• A kilogram of feather means, the mass of the given quantity of feather is one kilogram.
• Similarly, a kilogram of iron means, the mass of the given quantity of iron is one kilogram.
• Now, in practical scenario. The volume of one kilogram feather is much greater than the volume of one kilogram of iron. This volume difference creates the confusion here.
• They have different volumes inspite of having equal masses because their densities are different. We shouldn't judge mass of a given substance by just observing the volume of it. Density plays a great role here. (Density = Mass/Volume)