Density Practice

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 grams per milliliter (g/mL).

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What is the unit of density for solids and liquids?

Back

The unit of density for solids and liquids is typically grams per cubic centimeter (g/cm³) or grams per milliliter (g/mL).

Front

What is the relationship between density and buoyancy?

Back

An object will float in a fluid if its density is less than the density of the fluid.

Front

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

Back

Yes, it will float because its density is less than the density of water (1 g/cm³).

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³.

Front

A cube of aluminum has a volume of 9 cm³ and weighs 81 g. What is its density?

Back

Density = 81 g / 9 cm³ = 9 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

How can you determine the volume of an irregularly shaped object?

Back

You can determine the volume by using water displacement method: submerge the object in water and measure the volume of water displaced.