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No. In a vacuum, the weight of an object will be the product their mass, times the gravity. In other words, objects with different masses will have different weights.
The word for this is "similar." The same shape and the same size is "congruent."
Yes. In the absence of air, it doesn't even matter how their shapes and sizes compare.
Similar.
No, that's called a similar shape, it has to be both same shape and size, Your Welcome.
No, not unless they are made of the same substance. Different substances have different densities, which means that the same volumes will have different masses.
Objects have different mass because they not weighted the same..
Their masses are different. (Mass = density * volume)
Most likely because they're the same weight. Objects can have completely different masses and have the same weight.
Yes they can, if they have different densities.
Yes. And objects with different sizes, masses, and weights also fall the same.
Mass b > mass a
the two objects in question have different densities. The denser object has more mass.
if all of the forces affecting the objects are the same, then yes (i.e air resistance to a feather).
when you are comparing 3 objects of the same volume but different masses, which ever one is the heaviest, is the most dense and the lightest is the least dense. This is because Denisty= Mass ÷ Volume and when the volumes are the same, you just need to compare the masses.
If two solids have the same masses but different volumes they have different densities.
Different objects contain different amounts of matter, even if they are the same size. Therefore, two objects of the same size can have different masses.