Density Practice & Review

Front

What is density?

Back

Density is the mass of an object divided by its volume, usually expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³).

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What happens to an object with a density greater than water when placed in water?

Back

It will sink.

Front

What happens to an object with a density less than water when placed in water?

Back

It will float.

Front

What is the unit of measurement for density?

Back

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

Front

Why do different liquids form layers when mixed?

Back

Different liquids form layers because they have different densities.

Front

What is the relationship between density and buoyancy?

Back

An object will float if it is less dense than the fluid it is in, and sink if it is more dense.

Front

What is the density of water?

Back

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

Front

If an object has a mass of 30 grams and a volume of 10 mL, what is its density?

Back

Density = 30 g / 10 mL = 3 g/mL.

Front

What is the principle of flotation?

Back

The principle of flotation states that an object will float if the weight of the fluid it displaces is equal to the weight of the object.