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Inversely proportional means that one variable goes up while the other goes down. Directly proportional means that both variables increase or decrease at the same time. ex: The volume of a gas at constant pressure is inversely proportional to gas pressure, thus this means that as pressure increases, the volume of the gas will decrease. ex: The volume of a fixed amount of gas is directly proportional to absolute pressure, thus this means that when you heat a gas the volume also increases.

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Q: What does inversely and directly proportional mean?
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Related questions

What is directly and inversely proportional relationship?

Directly proportional relationship is F=ma, F is directly proportional to a. Inversely proportional relationship is v=r/t, v is inversely proportional to t.

How are current and resistance related are they directly proprtional or inversely proportional?

inversely proportional

Is temperature inversely proportional to concentration of oxygen?

it is directly proportional.

Are speed and distance directly proportional or inversely proportional?

Directly proportional. Greater speed - greater distance.

Is the resistance of the wire directly or inversely proportional to the cross-sectional area of the wire?

When it is on the cross-sectional area it is inversely proportional to the wire,otherwise it is directly proportional to the wire.

The statement that current is directly proportional to voltage and inversely proportional to resistance is known as whose law?

The statement current is directly proportional to voltage and inversely proportional to resistance is known as Ohm's Law.

Are force and mass directly proportional or inversely proportional?

Force is directly proportional to mass provided the acceleration is constant.

Which of the three variables that apply to equal amounts of gases are directly proportional Which are inversely proportional?

The following variables are directly proportional: Temperature and Pressure Temperature and Volume These variables are inversely proportional: Pressure and Volume

Is the amount of acceleration directly proportional to the fore and to the mass?

No, an object's acceleration is inversely proportional to an objects mass.

How do you tell if a math table is inversely proportional or directly proportional?

Generally, if y increases as x increases, this is a hint that the quantity is directly proportional, and if y decreases as x increases, the relation might be inversely proportional. However, this is not always the case. x and y are directly proportional if y = kx, where k is a constant. x and y are inversely proportional if y = k/x, k is constant. This is the best way to tell whether the quantities are directly or inversely proportional.

Is wavelenght and energy directly proportional to waves?

No, it is inver inversely proportional to waves. :)

Is accelaration directly proportional or inversely proportional to the force?

Directly. That's why you can't move a car by blowing on it.