2007-01-06 07:51:19 · 6 answers · asked by Latasha G 1 in Education & Reference ➔ Homework Help
Density, which equals mass/volume is always the same for a certain substance, while mass and volume can vary. For example, a 3g samle of a subtance may have a volume of 1cm^3, so it has a density of 3g/cm^3. A 12g sample would have a volume of 4cm^3 but the density would remain constant at 3g/cm^3.
2007-01-06 07:58:03 · answer #1 · answered by Z-man126 3 · 1⤊ 0⤋
Mass and volume are determined by how much of a substance you have. Doubling the amount will double the mass and volume. Density is the ratio between mass and volume d = m/v and remains constant, no matter how much of the substance you have. This can be seen by using equivalent fractions:
If you have 1 gram of substance and the volume it takes up is 2 cubic centimeters, then the density of the substance is .5 grams/cubic centimeter. (1 gram/2 cubic centimeters)
If you double the amount of the substance and now have 2 grams which take up 4 cubic centimeters, you have doubled the mass and volume. However, the density remains the same at .5 grams/cubic centimeter. (2 grams/4 cubic centimeters)
We can see this in the ratio expressed as equivalent fractions:
1/2 = 2/4
2007-01-06 09:14:46 · answer #2 · answered by Magic One 6 · 1⤊ 0⤋
Because both mass and volume depend on how much you have of the substance. Density is the ratio of mass and volume so it will not change even as the amount changes.
D=m/v
If you increase the mass the volume will also increase and the ratio will remain the same (we are not considering compression).
2007-01-06 07:59:32 · answer #3 · answered by catquarian 2 · 0⤊ 0⤋
The mass and volume of substances are always different, ie., a pound of sugar today, 7 grams of sugar tomorrow. Density is a property that never changes.
2007-01-06 07:57:32 · answer #4 · answered by Queens*Krown 1 · 0⤊ 0⤋
Mass and volume are both variant depending on how much of the substance you have. Density doesn't change with a substance, it stays the same.
2007-01-06 08:01:55 · answer #5 · answered by Ghandric 2 · 1⤊ 0⤋
the quantity of a substance can replace in keeping with various environmental factors - which comprise gravity, temperature, etc. The mass of a substance relies upon on how a great number of it you have. The density merely combines those 2 "characteristics" right into a level so which you could use to extra easily evaluate 2 factors.
2016-10-06 13:08:22 · answer #6 · answered by ? 4 · 0⤊ 0⤋