Front

What is density?

Back

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

Front

How do you calculate density?

Back

Density can be calculated using the formula: Density = Mass / Volume.

Front

What is the relationship between density and buoyancy?

Back

An object will float in a fluid if its density is less than the density of the fluid; it will sink if its density is greater.

Front

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

Back

Generally, the density of a substance decreases when it is heated, as the volume increases while mass remains constant.

Front

What is the density of water at 4°C?

Back

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

Front

Why do helium balloons rise in air?

Back

Helium balloons rise in air because helium is less dense than the surrounding air.

Front

What is the density of ice compared to liquid water?

Back

Ice is less dense than liquid water, which is why ice floats.

Front

What is a common unit of density in the metric system?

Back

A common unit of density in the metric system is grams per cubic centimeter (g/cm³).

Front

How does the density of a substance affect its state of matter?

Back

The density of a substance can influence its state of matter; for example, solids are generally denser than liquids, which are denser than gases.

Front

What is the principle of flotation?

Back

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