Density & %Error

A bar of copper has a mass of 216g and a volume of 24cm³. What is the density of copper?  

• 9g/cm3
• .11g/cm3
• 5184g/cm3
• 322mL

What is the density of a plastic ball that has a volume of 6cm³ and a mass of 12g? 

• 2g/cm³
• .5g/cm_³
• 72g/cm³
• 4mL

The volume of a candy bar is 55cm³. The mass of the candy bar is 70g. What is the density of the candy bar? 

• 2.3g/cm³
• .8g/cm³
• 3850g/cm³
• 1.3g/cm³

The attendance for the basketball game was estimated to be 15,000 people but 12,500 people attended. What was the percent error?

• 16.67%
• 20%
• 2500%
• 80%

Zed went to the store and bought a bag of chips.  He estimated there would be 350 chips in the package, but realized there were only 210 chips in that package.  What was his percent error?

• 35%
• 67%
• 85%
• 92%

Jessie estimates the weight of her cat to be 8 pounds.  The actual weight of the cat was 10 pounds.  Find the percent error.  

• 15%
• 20%
• 25%
• 30%