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Density

Definition

Density is a measure of mass per unit volume. It tells us how much stuff (mass) is packed into a certain amount of space (volume).

Related terms

Mass: Mass refers to the amount of matter in an object or substance – think about it as how many clothes you're trying to pack into your suitcase.

Volume: As mentioned before, volume is about how much space something takes up – this would be your suitcase size in our analogy.

Specific Gravity: This term compares an object’s density to water’s density. If you've ever wondered why some things float while others sink when placed in water, specific gravity has your answer!

"Density" appears in:

Subjects (4)

AP Biology
AP Calculus AB/BC
AP Human Geography
AP Physics 2

Study guides (1)

AP Chemistry - 3.3 Solids, Liquids, and Gases

Practice Questions (2)

5 mols of hydrogen gas fill 900mL in a glass container. Assuming standard temperature and pressure, what is the density of this gas?
The density of a sample of nitrogen gas is found to be 7.00 g/L. Given that there are 10 mols of nitrogen present, what is the volume of the sample?

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