Density Review Questions

Front

What is density?

Back

Density is the amount of matter (mass) packed into a given volume of an object, typically expressed in units such as g/mL or kg/m³.

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 approximately 1 g/cm³ (or 1,000 kg/m³).

Front

Which substance is less dense than water and would float?

Back

Substances like oil and cork are less dense than water and will float.

Front

If an object has a mass of 30 g and occupies a volume of 10 mL, what is its density?

Back

The density is 3 g/mL (calculated as 30 g / 10 mL).

Front

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

Back

If the mass increases while the volume remains constant, the density of the object increases.

Front

What is the least dense liquid commonly found?

Back

Oil is commonly known as one of the least dense liquids.

Front

How does temperature affect the density of liquids?

Back

Generally, as temperature increases, the density of liquids decreases because they expand.

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.

Front

What is the volume of an object if its mass is 50 g and its density is 2 g/mL?

Back

The volume of the object is 25 mL (calculated as 50 g / 2 g/mL).