Calculating & understanding density

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³.

Front

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

Back

5 g/cm³.

Front

What happens to the density of an object if its mass increases while its volume remains constant?

Back

The density increases.

Front

What happens to the density of an object if its volume increases while its mass remains constant?

Back

The density decreases.

Front

Why do helium balloons rise in air?

Back

Helium is less dense than air.

Front

What is the formula to find the volume of an object if its mass and density are known?

Back

Volume = Mass / Density.

Front

If a substance has a density of 8 g/cm³, what does this mean?

Back

It means that 1 cm³ of this substance has a mass of 8 grams.

Front

What is the relationship between density and buoyancy?

Back

An object will float if it is less dense than the fluid it is in.