If an object's mass is 200 g and its volume is 100 cm^3, what is its density?

If an object's mass is 200 g and its volume is 100 cm^3, what is its density?

• A. 0.5 g/cm^3
• B. 2 g/cm^3
• C. 200 g/cm^3
• D. 100 g/cm^3

Answer: (B)

Density is how much mass fits into a given volume, so we find it by dividing mass by volume. Here, 200 g of mass placed in 100 cm^3 of space gives 200 divided by 100, which equals 2. The units are grams per cubic centimeter, so the density is 2 g/cm^3. This value is greater than the density of water, meaning the object would sink if placed in water.

Density is how much mass fits into a given volume, so we find it by dividing mass by volume. Here, 200 g of mass placed in 100 cm^3 of space gives 200 divided by 100, which equals 2. The units are grams per cubic centimeter, so the density is 2 g/cm^3. This value is greater than the density of water, meaning the object would sink if placed in water.