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 formula for volume of a cube?

Back

Volume of a cube = side³.

Front

If a cube has a mass of 64 g and a side length of 2 cm, what is its density?

Back

Density = 64 g / (2 cm x 2 cm x 2 cm) = 8 g/cm³.

Front

What is the relationship between density and buoyancy?

Back

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

Front

How do you compare densities of different liquids?

Back

To compare densities, measure the mass and volume of each liquid and calculate their densities.

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³ at 4°C.

Front

What happens to the density of a substance when it is heated?

Back

Generally, the density of a substance decreases when it is heated, as its volume increases.

Front

What is the density of helium compared to air?

Back

Helium is less dense than air, which is why helium balloons rise.

Front

How do you find the mass of a liquid if you know its density and volume?

Back

Mass = Density x Volume.