Density

Front

What is density?

Back

Density is the mass of an object divided by its volume, usually expressed in grams per cubic centimeter (g/cm³).

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

Front

True or False: The density of a specific type of material never changes.

Back

True

Front

What two variables are needed to calculate density?

Back

Mass and Volume

Front

Why do helium balloons rise in air?

Back

Because helium is less dense than air.

Front

If an object has a density of 0.7 g/cm³, will it float on water?

Back

Yes, it will float because it is less dense than water (1 g/cm³).

Front

What is the density of water?

Back

1 g/cm³ at 4°C.

Front

If a rock has a mass of 14g and a volume of 2cm³, what is its density?

Back

7 g/cm³.

Front

What happens to the density of an object if its mass increases but its volume stays the same?

Back

The density increases.

Front

What happens to the density of an object if its volume increases but its mass stays the same?

Back

The density decreases.