CC Measurement

What happens to the density of an object when it is cut in half?

• The density is reduced by half

• The density is the same

• The density is cut into one fourth

• The density is doubled

The density of water is 1.000 g/mL. Based on the behavior of ice in water, one could conclude that the density of ice ___________.

• Is greater than 1.000 g/mL

• Is equal to 1.000 g/mL

• Is less than 1.000 g/mL

• Cannot be determined with this information

If a sample has a mass of 1.25 x 102 grams and a volume of 51 mL, what is its density?

• 0.00025 g/mL

• 0.0125 g/mL

• 2.5 g/mL

• 250 g/mL

An unidentified white substance has a mass of 33g and a volume of 15 cm3. Based on information in the chart to the right, the white substance is most likely

• marble

• sugar

• table salt

• wax

Two liquids are poured into a container; one liquid floats on top of the other. Liquid A has a density of 0.75 g/mL. Liquid B has a density of 1.14 g/mL. Which liquid is on top?

• Liquid A

• Liquid B

• Neither, they mix together

• Not enough information to tell

How would the following number be written in scientific notation?

7,506,000,000,000,000,000

• 75.06 x 10^-18

• 7.506 x 10^-18

• 7.506 x 10¹⁸

• 7.506 x 10¹⁷

How would you describe the following target?

• Accurate

• Precise

• Both accurate and precise

• Neither accurate and precise

Correctly round 2.6765 to two decimal places.

• 2.677

• 2.67

• 2.68

• 2.60

Using dimensional analysis, convert an aspirin tablet containing 325 mg of acetaminophen into grains?

1 gram =1000.0 mg

1 gram = 15.432 grains

• 5.02 grains

• 21.1 grains

• 47500 grains

• 5015400 grains

Upon inspection, two pieces of wood appear to have the same general physical properties. Sample A has a mass of 35 g and a volume of 50 mL. Sample B has a mass of 63 g and a volume of 90 mL. These two pieces of wood are:

• Made of different wood and demonstrate the extensive properties of mass

• Made of the same wood and demonstrate the intensive property of density

• Made of different wood and demonstrate the intensive properties of mass

• Made of the same wood and demonstrate the extensive property of density