Significant Figures and Measurements Quiz

How many significant figures are in the number 0.00560?

• 2

• 3

• 4

• 5

What is the result of multiplying 6.022 by 2.1, keeping the correct number of significant figures in mind?

• 12.6462

• 12.65

• 12.6

• 13

When you subtract 45.678 from 123.4, what is the correct result rounded to the appropriate number of significant figures?

• 77.722

• 77.72

• 77.7

• 77.8

Which of the following measurements has the highest number of significant figures?

• 0.000560

• 0.00560

• 5600

• 6.500

What is the result of adding 3.456 and 0.00678 using the correct significant figures?

• 3.46278

• 3.46

• 3.463

• 3.5

When dividing 456.78 by 3.20, what should the answer be using the correct number of significant figures?

• 142.74375

• 142.7

• 142.74

• 143

What is the value if you convert 5 kilometers (km) to meters (m)?

• 500 m

• 0.005 m

• 50,000 m

• 5,000 m

If you repeatedly measure the length of an object and your results are very close to each other but far from the true value, what can you say about your measurements?

• They are both accurate and precise

• They are neither accurate nor precise

• They are accurate but not precise

• They are precise but not accurate

In a laboratory experiment, why is it important to consider both accuracy and precision when evaluating your results?

• Both accuracy and precision are needed to minimize errors and provide valid conclusions

• Precision alone ensures that measurements are reliable

• Accuracy alone guarantees valid results

• Only precision matters because accuracy can be adjusted later

Which scenario best demonstrates high precision but low accuracy?

• Consistently hitting the same spot on a target far from the bullseye

• Hitting the bullseye on a target repeatedly

• Getting scattered results that average to the true value

• Getting varied results, some close to the true value and some far from it.