Density with Video

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?

• 57148

• 208

• 1353

• 135

Which box has a higher density?

• A

• B

• They both have the same density.

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

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

Material of density of 762 kg/m³ occupies a container volume of 99 m³. What is its mass?

Hint: density = mass/volume

• 75438 kg

• 7.70 kg

• 0.13 kg

• 6858 kg

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

Helium balloons rise on earth because

• helium is less dense than air

• helium is more dense than air

• helium is cooler than air

• helium is warmer than air

A student knows the mass of an object. What other variable does the student need to know to calculate the object's density?

• Color

• Weight

• Volume

• Length