2006-11-13 13:47:10 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Physics
m = vd where m is mass, v is volume and d is density. So volume = size is important.
2006-11-13 13:55:23 · answer #1 · answered by pkababa 4 · 0⤊ 0⤋
Don't think "Size" - think "Volume"
D=m/V
Density = Mass per (divided by) Volume
If you take a balloon and blow it up, it has a bigger volume than if you dip it in liquid nitrogen. The liquid Nitrogen will freeze the air inside into a solid and your balloon will look like a wrinkled dead hotdog. Its density increased because its volume decreased - its mass hasn't changed.
The cool thing is, you can 'blow it up' from the outside! As you blow on it, the air inside heats and expands until it has returned to its original volume (and density)
2006-11-13 21:57:21 · answer #2 · answered by Horsmn4 4 · 0⤊ 0⤋