Density

Front

What is density?

Back

Density is defined as mass per unit volume of a substance, typically expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

Front

What are the two main types of fluids?

Back

The two main types of fluids are liquids and gases.

Front

What determines whether an object sinks or floats in a fluid?

Back

An object sinks or floats in a fluid based on its density relative to the density of the fluid.

Front

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

Back

If the object's density is less than the density of water (1 g/cm³), it will float; if it is greater, it will sink.

Front

What is the principle of buoyancy?

Back

The principle of buoyancy states that an object submerged in a fluid experiences an upward force equal to the weight of the fluid displaced by the object.

Front

How do you compare the densities of different liquids?

Back

To compare the densities of different liquids, you can arrange them in order from most dense to least dense based on their mass per unit volume.

Front

What happens to the density of a substance when it is heated?

Back

Generally, when a substance is heated, its density decreases because the substance expands, increasing its volume.

Front

What is the formula for calculating density?

Back

The formula for calculating density is Density = Mass / Volume.

Front

Why does a brick sink in water while a wooden block floats?

Back

A brick sinks in water because it has a higher density than water, while a wooden block floats because it has a lower density than water.

Front

What is the relationship between mass, volume, and density?

Back

Mass, volume, and density are related; as mass increases while volume remains constant, density increases, and vice versa.