Density

Front

What is density?

Back

Density is a measure of how much mass is contained in a given volume. It is calculated using the formula: density = mass / volume.

Front

What is the formula for calculating density?

Back

density = mass / volume

Front

What happens to objects that are less dense than a liquid?

Back

Objects that are less dense than a liquid will float in that liquid.

Front

What happens to objects that are more dense than a liquid?

Back

Objects that are more dense than a liquid will sink in that liquid.

Front

What two measurements are needed to calculate density?

Back

Mass and Volume.

Front

How does temperature affect the density of air?

Back

Warm air is less dense than cool air, which is why hot air balloons float.

Front

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

Back

Density = mass / volume = 10 g / 2 cm³ = 5 g/cm³.

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³ at 4°C.

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 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.