If the two bags weighed the same then yes they would have the same mass! But If they had different weights then the mass would be different! and the mass of the rocks would be higher then the bag of feather!
Well, if you say massive there can be a lot of options, massive can be mass, in this case, i think we are refering to mass, so, imagine that you have a pile of rocks against a pile of feathers, if we add more feathers to it, then maybe we can make it massive but in the other hand, you have to think about that a rock, if it is weighted against a lot of feathers, then the rock is massive, why? because only one rock is available to weight more than a lot of feathers
Answer That seems like a trick question to me! You could certainly gather enough feathers to equal the 'weight' of a rock. Weight is a measure of gravitational force on an object. The pull of gravity on a rock and a feather will be the same. In a vacuum, they will both fall at the same rate. They will both hit the bottom at the same time. Now of course, rocks feel heavier than feathers. But you could gather enough feathers so that a box of feathers feels just about as heavy as a rock. So which weighs more? Feathers or rocks? The question you should probably ask is which has more 'mass'. A measure of mass doesn't change with altitude, as does weight. Mass will be the same measurement for an object no matter where you take the measurement. And even better, you should probably ask which has the bigger density. Density is mass per volume. And then, of course, the answer is easy to give: rocks have a bigger density than feathers. Because if you take a box filled with rocks and a box filled with feathers, and if both boxes have the same size (the same volume) then the box with rocks is going to have the bigger mass.
gold
A pound of feathers has more mass. The are lighter so they would take up more space to make a pound.
I would need more details to answer but if your asking about the common question, "What weighs more, an ounce of feathers, or an ounce of rocks?" then they are the same.
Pebbles are heavier because they're rocks. Feathers are lightweight and fur.
The cup of rocks has more mass than the cup of air because it is heavier.
10 kg is greater than 6 kg. kg is the unit of mass. Hence feather has more mass than lead in this case.
Neither!!! They both have the same mass at 1 kg. However, the feathers will occupy a greater volume.
Neither! They both have the same mass of 1 Kilogram.
An ounce of gold will have more mass because mass is how much space an object takes up. Feathers have a low density, while gold has a high density and takes up more space than a pourus (wispy) feather. So an ounce of gold does take up more space than an ounce of feathers.
A pound of feathers because feathers are less dense than lead and therefore take up more volume for the same mass.