Density

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 does temperature affect the density of air?

Back

When air is heated, its molecules move apart, causing the air to become less dense.

Front

What happens to objects with a density less than water?

Back

Objects with a density less than water will float.

Front

What happens to objects with a density greater than water?

Back

Objects with a density greater than water will sink.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

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

Back

Density = 10 g / 2 mL = 5 g/mL.

Front

What is the relationship between temperature and density in liquids?

Back

Generally, as temperature increases, the density of liquids decreases.

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid, which is determined by the object's density compared to the fluid's 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

If the object's density is less than 1 g/mL, it will float; if it is greater, it will sink.