Density

Front

What is density?

Back

Density is the measure of mass per unit volume of a substance, typically expressed in grams per cubic centimeter (g/cm³).

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

If an object has a mass of 10g and a volume of 2cm³, what is its density?

Back

5 g/cm³.

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³.

Front

Why does ice float on water?

Back

Ice floats because it is less dense than liquid water.

Front

What happens to the density of a substance when it is heated?

Back

Generally, the density decreases when a substance is heated because its volume increases.

Front

What is mass?

Back

Mass is the amount of matter in an object, usually measured in grams (g).

Front

What is volume?

Back

Volume is the amount of space an object occupies, typically measured in cubic centimeters (cm³) or liters (L).

Front

If a rock has a mass of 20g and a volume of 4cm³, what is its density?

Back

5 g/cm³.

Front

What is the relationship between mass, volume, and density?

Back

Density is the ratio of mass to volume; as mass increases with constant volume, density increases, and vice versa.