Sig Fig Notes

Multiple Choice

Which of the following best describes the role of zeroes in measurements?

• Zeroes always represent significant digits.

• Zeroes can serve as placeholders or as significant digits, depending on their position.

• Zeroes are never significant in any measurement.

• Zeroes only matter in whole numbers.

Multiple Choice

Which of the following numbers is considered significant according to the first rule?

• 0

• 3

• 00

• 000

Multiple Choice

Based on the rules shown, why are the zeros in the number 0.000002 not significant?

• They are between non-zero numbers

• They are trailing zeros after a decimal

• They are leading zeros (placeholders)

• They are part of the number's value

Multiple Choice

According to the rules, when are trailing zeros considered significant?

• When they are in front of a non-zero number

• When the number has a decimal written

• When they are between non-zero numbers

• When they are at the beginning of a number

Fill in the Blanks

Fill in the blank: According to the Pacific-Atlantic rule, if a decimal is

, count all the digits after the first non-zero number from the left side.

Multiple Choice

According to the Pacific/Atlantic rule, how many significant figures are in the number 2000. (with a decimal)?

• 1

• 2

• 3

• 4

Fill in the Blanks

Fill in the blank: When a decimal is

, count all the digits after your first non-zero number starting on the right side (Atlantic).

Multiple Choice

Which of the following statements is true about significant figures?

• They tell you the kind of tool used for measurement.

• They are always equal to the number of digits in a number.

• They are not important in scientific measurements.

• They only apply to whole numbers.

Open Ended

How can the number of significant figures in a measurement be used to judge the quality of experimental data?

​Practice: How many significant figures do each of these have??

Multiple Choice

Which of the following numbers has the greatest number of significant figures?

• 0.00975

• 1,000,000.

• 4367.000

• 0.0000005

Multiple Select

Select all the statements that are true about significant figures in the context of multiplying measurements.

• The answer should have as many significant figures as the measurement with the fewest significant figures.

• Zeros at the end of a whole number without a decimal are not significant.

• All nonzero digits are always significant.

• When multiplying, you add the significant figures from each measurement.

Multiple Choice

Which of the following statements best describes the role of zeroes in measurements?

• Zeroes always represent significant digits.

• Zeroes can serve as placeholders or significant digits depending on their position.

• Zeroes are never significant in any measurement.

• Zeroes are only used to separate whole numbers from decimals.

Open Ended

Explain why the final answer for the surface area calculation has a different number of significant figures than the measurements used.