Chapter 2 Review

190 km = ___m

• 190

• 190,000

• 19

• 19,000

160 cm = _______ mm

• 16 mm
• 1.6 mm
• 160 mm
• 1,600 mm

How close a measurement is to the accepted value is called..

• Accuracy

• Precision

• Significant

• Estimate

This bullseye demonstrates...

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

Tags

NGSS.HS-PS2-1

As the result of experimental work, a student finds the density of a liquid to be 30 g/cm3. The known density of that liquid is 25 g/cm3. What is the percent error of this student’s work?

• 200

• 20

• 2

• 0.02

An object is measured to be 3.12 g.  The accepted value is 4.50 g.  What is the percentage error for this measurement?

• 43.1%
• 30.7%
• 30.666%
• 25.1%

Determine the number of significant figures in the following measurement.
9.03 mL

• 0
• 1
• 2
• 3

How many significant figures: 0.010 L

• 1
• 2
• 3
• 4

432.521 + 3.50

• 436.021

• 436.02

• 436.0

• 436

0.9/2.3

• 0.391

• 0.39

• 0.40

• 0.4