Density Population Density

There are approximately 17,620 people per square mile in New York City. If New York City is 468 square miles, approximately how many people live in New York City?

• 10,000,000

• 8,246,160

• 4,365,111

• 56,778,112

Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm³. What is the density of the rock?

• 7 g/cm3

• 7 mL

• 1/7 g/cm3

• 28 g/cm3

A piece of copper has a mass of 89g and a volume of 10 cm3.  What would be the density of the copper?

• 0.89 g/cm3

• 89 g/cm3

• 8.9 g/cm3

• 890 g/cm3

Which box has a higher density?

• A

• B

• They both have the same density.

Which are correct ways to write units for density ?

• g/ mL

• g

A city has a population of 8792 people. The area of the city is approximately 6.5 square miles. Approximately, how many people per square mile live in the city?

• 208

• 1000

• 1353

• 2000

For a certain species to survive, the population density must be less than 32 per sq mile. In a rectangular preserve measuring 15m by 25mi, the Biologists calculated 8,978 animals. Is this enough room for the animals to survive?

• no 35 > 32 so there isn't enough room

• yes, 24 < 32 so there is enough room

Which definition best matches the term population density?

• human beings in general

• number of people in a particular area

• A measurement of people for a specific area

• All the inhabitants of a particular area

There are approximately 17,620 people per square mile in New York City. If New York City is 468 square miles, approximately how many people live in New York City?

• 17,620

• 8,246,160

• 37

• .027

Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm³. What is the density of the rock?

• 7 mL

• 7 g/cm³

• 28 g/cm³

• 1/7 g/cm³