Density

Front

What is density?

Back

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

Front

How do you determine if an object will sink or float in water?

Back

An object will float if its density is less than the density of water (1 g/mL) and sink if its density is greater.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What tool is used to measure the volume of a liquid?

Back

A graduated cylinder is used to measure the volume of a liquid.

Front

What units are commonly used to measure volume?

Back

Common units for volume include milliliters (mL) and cubic centimeters (cm³).

Front

If an object has a density of 0.8 g/mL, will it sink or float in water?

Back

It will float because its density is less than that of water.

Front

What is the mass of an object that has a volume of 10 cm³ and a density of 2 g/cm³?

Back

Mass = Density x Volume = 2 g/cm³ x 10 cm³ = 20 g.

Front

What is the volume of an object with a mass of 30 g and a density of 3 g/cm³?

Back

Volume = Mass / Density = 30 g / 3 g/cm³ = 10 cm³.

Front

What is the density of a cube that has a mass of 12 g and a volume of 4 cm³?

Back

Density = Mass / Volume = 12 g / 4 cm³ = 3 g/cm³.

Front

What happens to the density of an object if you increase its volume while keeping its mass constant?

Back

The density decreases because density is inversely proportional to volume.