Density

There are 4,564 horses in Royale Stables. The stables have an area of 789 sq. km. What is the population density of horses in Royale Stables?

• 5.78 horses/sq km

• 0.007 horses/sq km

• 0.17 horses/sq km

• 578 horses/sq km

City A has 9,356,400 people living in it. It's population density is 6,332 people/sq km. What is its area (sq km)?

• 1,477.64 sq km

• 147.76 sq km

• 0.00067 sq km

• 67 sq km

If a block of wood has a density of 0.6 g/cm3 and a mass of 120 g, what is its volume?

• 300 cm3

• 200 cm3

• 100 mL

• 150 cm3

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

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

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

What is the formula for Density?

• Density * Volume

• Mass/Density

• Mass/Volume

Density is the measure of how compact the mass is inside of an object?

• False

• True

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