Density and Buoyancy

Front

What happens to the mass of a substance when it is cooled?

Back

The mass remains equal.

Front

What is the term used to describe the degree of compactness of a substance?

Back

Density.

Front

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

Back

The mass remains equal.

Front

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

Back

The density decreases.

Front

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

Back

The volume increases.

Front

Define density in terms of mass and volume.

Back

Density is defined as mass per unit volume (Density = Mass/Volume).

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid, determined by the difference between the weight of the object and the weight of the fluid displaced.

Front

How does temperature affect the density of liquids?

Back

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

Front

What is the principle of Archimedes?

Back

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

Front

What is the relationship between temperature and volume for gases?

Back

For gases, as temperature increases, the volume also increases (Charles's Law).