Density

Front

What is density?

Back

Density is the mass of an object divided by its volume. It is usually 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 unit of density?

Back

The unit of density is typically grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

Front

What does it mean if an object is more dense than another?

Back

If an object is more dense than another, it means it has more mass per unit volume compared to the other object.

Front

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

Back

Generally, when a substance is heated, its volume increases and its density decreases.

Front

What is the relationship between mass and volume in density?

Back

Density is directly related to mass and inversely related to volume. Increasing mass increases density, while increasing volume decreases density.

Front

How can you determine which of two objects is denser?

Back

You can determine which object is denser by comparing their mass and volume. The object with the greater mass for the same volume is denser.

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.

Front

What is the principle of flotation?

Back

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

Front

What is a common example of a less dense object floating on a denser fluid?

Back

An example is a wooden block floating on water.