Density STAAR Review

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 measurement for density?

Back

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

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

Back

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

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. It will sink if its density is greater.

Front

What is a common example of a substance with a high density?

Back

Lead is a common example of a substance with a high density.

Front

What is a common example of a substance with a low density?

Back

Foam or air is a common example of a substance with a low density.

Front

How does temperature affect the density of liquids?

Back

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

Front

How does temperature affect the density of gases?

Back

As temperature increases, the density of gases decreases because they expand and occupy more volume.