Density 8th grade

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 units are commonly used for density?

Back

Common units for density include grams per cubic centimeter (g/cm³) and kilograms per cubic meter (kg/m³).

Front

If an object has a mass of 10g and a volume of 2cm³, what is its density?

Back

Density = 10g / 2cm³ = 5 g/cm³.

Front

Which property is most useful for identifying an unknown liquid?

Back

Density is the most useful property for identifying an unknown liquid.

Front

What happens to an object with a density less than that of water?

Back

An object with a density less than that of water (1 g/cm³) will float.

Front

What happens to an object with a density greater than that of water?

Back

An object with a density greater than that of water (1 g/cm³) will sink.

Front

If a liquid has a density of 1.2 g/mL, will it float or sink in water?

Back

It will sink because its density is greater than that of water (1 g/mL).

Front

What is the density of a paper clip with a mass of 9g and a volume of 3cm³?

Back

Density = 9g / 3cm³ = 3 g/cm³.

Front

What is the density of a rock with a mass of 14g and a volume of 2cm³?

Back

Density = 14g / 2cm³ = 7 g/cm³.