Science Quiz

Which of the following observations is quantitative?

• The liquid turns blue litmus paper red.

• The liquid boils at 100°C.

• The liquid tastes bitter.

• The liquid is cloudy.

Which of the following observations is qualitative?

• A chemical reaction was complete in 2.3 seconds.

• The solid had a mass of 23.4 grams.

• The pH of a liquid was 5.

• Salt crystals formed as the liquid evaporated.

Which of these metric units is used to measure mass?

• m

• mm

• g

• L

The quantity of matter per unit volume is

• mass.

• weight.

• inertia.

• density.

The standard base unit for mass is the

• gram.

• cubic centimeter.

• meter.

• kilogram.

The density of an object is calculated by

• multiplying its mass times its volume.

• dividing its mass by its volume.

• dividing its volume by its mass.

• adding its mass to its volume.

The density of aluminum is 2.70 g/cm³. What is the mass of a solid piece of aluminum with a volume of 1.50 cm³?

• 0.556 g

• 1.80 g

• 4.05 g

• 4.20 g

A sample of gold has a mass of 96.5 g and a volume of 5.00 cm³. The density of gold is

• 0.518 g/cm³

• 19.3 g/cm³

• 101.5 g/cm³

• 483 g/cm³

The density of pure diamond is 3.5 g/cm³. What is the volume of a diamond with a mass of 0.25 g?

• 0.071 cm³

• 0.875 cm³

• 3.75 cm³

• 14 cm³

A measurement that closely agrees with an accepted value is best described as

• precise.

• reproducible.

• significant.

• accurate.