Density Review

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 grams per milliliter (g/mL).

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What is the formula to find the volume of a cube?

Back

Volume = side × side × side (s³).

Front

If an object has a mass of 50 g and occupies a volume of 10 mL, what is its density?

Back

Density = 50 g / 10 mL = 5 g/mL.

Front

What happens to the water level when an object is submerged in it?

Back

The water level rises by an amount equal to the volume of the submerged object.

Front

What is the relationship between mass and density?

Back

For objects with the same volume, the object with greater mass will have a higher density.

Front

What is the density of water?

Back

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

Front

How can you determine if an object will float or sink in water?

Back

An object will float if its density is less than that of water (1 g/mL) and sink if its density is greater.

Front

What is the density of a substance if its mass is 100 g and its volume is 25 cm³?

Back

Density = 100 g / 25 cm³ = 4 g/cm³.

Front

What is the significance of density in identifying substances?

Back

Different substances have unique densities, which can help identify them when compared to known values.