2007-02-26 09:41:57 · 4 answers · asked by Tracey Lee ♥ 2 in Science & Mathematics ➔ Chemistry
Not dumb at all.
Proportional - one thing increases in line with another. For example, mass and volume.
Inversely Pr.. - as one thing increases, the other decreases. A good example of this relationship is Boyle's Law.
2007-02-26 09:47:25 · answer #1 · answered by Anonymous · 1⤊ 0⤋
If X is directly proportional to Y: As X increases in value, so does Y.
Example: As the amount of water (X) increases in a cup, the weight of the cup (Y) increases as well.
If X is inversely proportional to Z: As X increases Z decreases.
Example: As the amount of water (X) increases in a cup, the amount of air in the cup (Z) decreases.
Hope this helped.
2007-02-26 17:56:21 · answer #2 · answered by mackn 3 · 0⤊ 0⤋
Proportional means that what you do to one side of an equation happens exactly to the other side of the equation. For example:
y=3x. If you double y, then you double the value of 2x.
Inversely proportional means that the inverse (opposite) of what you do to one variable happens to the other. For example: y=3/x. If you double the value of y, then you cut the value of 3/x in half.
2007-02-26 17:50:50 · answer #3 · answered by George T 2 · 0⤊ 0⤋
Good answer above
Think of it like this:
As you squeeze air down (make the volume smaller) you will increase the pressure.
So volume is inversely proportional to pressure
2007-02-26 17:54:27 · answer #4 · answered by bourgoise_10o 5 · 0⤊ 0⤋