Density

Front

What is density?

Back

Density is a measure of how much mass is contained in a given volume. It is calculated using the formula: Density (D) = Mass (m) / Volume (v).

Front

What units are commonly used to express density?

Back

Density is commonly expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

Front

How do you calculate the density of an object?

Back

To calculate density, divide the mass of the object by its volume: D = m / v.

Front

If an object has a mass of 30 grams and a volume of 10 cm³, what is its density?

Back

Density = 30 g / 10 cm³ = 3 g/cm³.

Front

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

Back

Mass is directly proportional to density when volume is constant, and volume is inversely proportional to density when mass is constant.

Front

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

Back

If the mass increases and the volume remains the same, the density of the object increases.

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³.

Front

How does temperature affect the density of liquids?

Back

As temperature increases, the density of most liquids decreases because they expand.

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid, which is determined by the density of the object compared to the density of the fluid.