Question

haw can two objects have the same volume but different masses?

Answer 1

what a tough question!
consider an empty sphere with a radius R and a solid sphere with the same radius. so which is lighter?

Answer 2

the solid one @Saeeddiscover

Answer 3

So yes that is correct?

Answer 4

what a smart aleck guy!

Answer 5

i'm confused

Answer 6

what are you trying to say?
and i'm a girl

Answer 7

sorry, I cannot help you anymore.

Answer 8

and why not!
=l

Answer 9

I have to go..

Answer 10

ok bye

Answer 11

Of course!

Answer 12

Mass=density*volume. If density of object is different then mass for same value can be different.

Answer 13

so like if there is a square and a rectangle and they have the same volume but different masses right?

Answer 14

What grade are you in :/?

Answer 15

different atoms have different weights for the same volume. this is called atomic weight as noted on the periodical table. lead atoms have more weight than oxygen atoms. so a lead ballon weighs more than an air filled balloon with the same volume. plus the distance between the molecules also differs and this will be taken up by space/air. lead molecules are closer together (more dense) then say copper molecules this is why when weighed against lead or other things that have less space between the atoms (more dense means more atoms in the same volume) since we know that air atoms are on the lighter side then the will weigh less or more depending on the what the other atoms properties are. simply put. water is dense. so a water balloon weighs more then an air balloon filled with the same volume since the air atoms are spaced further apart and also weigh less than water molecules. why is some steel stronger than others? it has a lot to do with the spacing of the atoms. copper bends easy compared to lead. because the molecules are spaced further apart.
Sorry if my explanation is rambling. but I only have a 6th grade education. (for real)

Answer 16

what is inside you square? is it the same as the rectangle? air. if so then they weigh the same if the volume is the same (unless the air in one is more humid) then it will weigh a little bit more. another example is chocolate cakes, one is pudding filled the other is light and fluffy (mostly air. both cakes are 8" round by 2" high. the cake with the pudding is more dense. the molecules are closer together so it weighs more.

Answer 17

if you counted the atoms in the cakes the one with the pudding would have many more atoms since air molecules are spaced very far apart there are less of them.

Answer 18

Note- a square and a rectangle do NOT have volume. They describe flat (2D) surfaces.
A cube and a cuboid are the 3D shapes you are describing.
But back to your original, very trivial question. Take a look at a golf ball and a table tennis ball. They are very similar in size (i.e. volume) but very different in mass. If you want to know about physics ask YOURSELF (not a forum) why this is....

Answer 19

you take an empty water bottle.. it contains air.. so its not empty really :D..
it is light correct?

now fill water in it.. now its heavy correct?

in either case they have the same volume correct ? (cause same bottle ).. so there you go