Calculating Density

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 is calculated using the formula: Density = Mass / Volume.

Front

What is the density of water?

Back

The density of water is 1 g/cm³.

Front

What does it mean for an object to be negatively buoyant?

Back

An object is negatively buoyant if it sinks in a fluid, meaning its density is greater than that of the fluid.

Front

If an object has a mass of 50 g and a volume of 10 cm³, what is its density?

Back

Density = 50 g / 10 cm³ = 5 g/cm³.

Front

What happens to the density of an object if its mass increases while its volume remains the same?

Back

If the mass increases and the volume remains the same, the density of the object increases.

Front

What happens to the density of an object if its volume increases while its mass remains the same?

Back

If the volume increases and the mass remains the same, the density of the object decreases.

Front

How can you determine the density of an irregularly shaped object?

Back

To determine the density of an irregularly shaped object, measure its mass and its volume using water displacement, then use the formula Density = Mass / Volume.

Front

What is the relationship between density and buoyancy?

Back

The relationship is that objects with a density less than the fluid will float (positively buoyant), while those with a density greater than the fluid will sink (negatively buoyant).

Front

If a liquid has a density of 0.8 g/cm³, will it float or sink in water?

Back

It will float because its density is less than that of water (1 g/cm³).