Density Quiz

• density
• mass
• volume
• length
• area
• graduated cylinder
• triple beam balance

What is the density of a 14.9 g sample of a substance that has a volume of 2.09 cm³?

• 7.13 g/cm³

• 0.140 g/cm³

• 12.81 g/cm³

• 16.99 g/cm³

What is the mass of a 26 cm³ sample of aluminum with a density of 2.70 g/cm³?

• 70.2 g

• 9.63 g

• 0.104 g

• 28.70 g

What is the volume of a 3159.0 g sample of iron with a density of 7.20 g/cm³?

• 439 cm³

• 22,745 cm³

• 0.00228 cm³

• 3166.20 cm³

Match the following rules with the type of digit

• nonzero digits

• Always significant

• captive zero

• zero that is always significant

• trailing zero

• never significant

• leading zero

• significant if there is a decimal present.

What is the purpose of the insignificant zeros?

• placeholder

• make numbers larger

• make numbers smaller

• no purpose

How many significant figures are in 0.0060900?

• 5

• 8

• 3

• 2