Density

Front

What is density?

Back

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

Front

How is population density defined?

Back

Population density is the average number of people living in a specific area, usually expressed as people per square kilometer or square mile.

Front

What is the formula to calculate density?

Back

Density = Mass / Volume.

Front

If a substance has a mass of 100 grams and a volume of 50 cm³, what is its density?

Back

Density = 100 g / 50 cm³ = 2 g/cm³.

Front

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

Back

Mass is directly proportional to density and volume; if density increases, mass increases if volume remains constant.

Front

How do you calculate the mass of a substance if you know its density and volume?

Back

Mass = Density × Volume.

Front

What is the volume of a substance with a mass of 200 grams and a density of 5 g/cm³?

Back

Volume = Mass / Density = 200 g / 5 g/cm³ = 40 cm³.

Front

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

Back

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

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³ at 4°C.

Front

If two objects have the same volume but different masses, what can be said about their densities?

Back

The object with the greater mass has a higher density.