Significant Figures Quiz

What are the rules for determining significant figures in a number?

• Leading zeros are significant

• All non-zero digits are significant

• All digits after the decimal point are significant

• Only even digits are significant

How many significant figures are in the number 0.00345?

• 3

• 5

• 2

• 1

When rounding with significant figures, what is the rule for rounding 5?

• Round up

• Ignore

• Round down

• Round to the nearest even number

What is the result of multiplying 2.3 and 4.56, rounded to the correct number of significant figures?

• 10.5

• 8.5

• 12.5

• 6.5

In the number 7000, how many significant figures are there?

• 2

• 4

• 3

• 1

When adding or subtracting with significant figures, what is the rule for determining the final answer?

• The final answer should have the same number of significant figures as the measurement with the most significant figures.

• The final answer should have no decimal places.

• The final answer should have the same number of decimal places as the measurement with the fewest decimal places.

• The final answer should have one more decimal place than the measurement with the most decimal places.

What is the result of dividing 8.91 by 3.0, rounded to the correct number of significant figures?

• 2.97

• 2.9

• 3.0

• 3.1

How many significant figures are in the number 500.0?

• 2

• 4

• 3

• 5

What is the rule for determining significant figures in a calculated result?

• Round the result to the same number of decimal places as the most precise measurement used in the calculation.

• Ignore the significant figures of the measurements and use a fixed number, such as 3.

• Round the result to the same number of significant figures as the least precise measurement used in the calculation.

• Significant figures are not important in calculated results.

When multiplying or dividing with significant figures, what is the rule for determining the final answer?

• The final answer should have the same number of significant figures as the factor or quotient with the fewest significant figures.

• The final answer should have one less significant figure than the factor or quotient with the most significant figures.

• The final answer should have a random number of significant figures.

• The final answer should have the same number of significant figures as the factor or quotient with the most significant figures.