Significant Figures

How many estimated digits should there be in an accepted measurement?

• 0
• 1
• 2
• 3

This bullseye demonstrates...

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

In the measurement 0.503 L, which digit is the estimated digit?

• 5
• the 0 immediately to the left of the 3
• 3
• the 0 to the left of the decimal point

Tags

CCSS.5.NBT.A.4

Three different people weigh a standard mass of 2.00 g on the same balance.  Each person obtains a reading of 7.32 g for the mass of the standard.  These results imply that the balance that was used is ____.

• accurate
• precise
• accurate and precise
• neither accurate nor precise

Romy's measurements: 6.02 m, 6. 04 m, 6.03 m
Actual Value: 6.02 m
How would you define her measurements?

• accurate and precise
• accurate 
• precise
• neither

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

• 43.1%

• 30.7%

• 30.666%

• 25.1%

How many significant figures does the following number have: 56.040

• 2
• 3
• 4
• 5

Calculate 345.009 g - 23.01 g and give your answer with the appropriate number of significant figures.

• 322.00 g

• 322 g

• 321.999 g

• 321.99

Calculate 7.987 m - 0.54 m and give your answer with the appropriate number of significant figures.

• 7.45 m

• 7.447 m

• 7.4 m

• 7.5 m

When performing the calculation 34.530 g + 12.1 g + 1222.34 g the final answer must have

• Three significant figures
• One decimal place
• Two decimal places
• Three decimal places