Review #3 - Density Concepts

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

Front

What is the density of a substance if it has a mass of 50g and a volume of 25ml?

Back

2.0 g/ml

Front

How does density affect whether an object will float or sink in a fluid?

Back

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

Front

What is the typical density of water at room temperature?

Back

1.0 g/ml

Front

What happens to the density of most substances when they are heated?

Back

Most substances decrease in density when heated due to expansion.

Front

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

Back

Density is a ratio of mass to volume, indicating how much mass is contained in a given volume.

Front

Why do ice cubes float in water?

Back

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

Front

What is the density of a liquid that has a mass of 40g and a volume of 50ml?

Back

0.8 g/ml

Front

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

Back

By measuring its mass and using water displacement to measure its volume.

Front

What is the significance of a substance's density in real-world applications?

Back

Density can determine buoyancy, material selection, and separation processes in various industries.