2 Finding Sig Figs

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| By Kyle Pearson
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Kyle Pearson
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Quizzes Created: 34 | Total Attempts: 100,390
Questions: 11 | Attempts: 188

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2 Finding Sig Figs - Quiz

Find the sig figs using OCEANS or RULES.


Questions and Answers
  • 1. 

    How many significant figures are in:  3.10e23 cm

    Explanation
    OCEAN METHOD explanation: Decimal is PRESENT - so PACIFIC OCEAN (left side of number) - find the first number that is not a zero, it is a (3) - once it is found that number is significant and everything after it is also significant
    RULES METHOD explanation: Rule 4) Trailing zeros are only significant if there is a decimal

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  • 2. 

    How many significant figures are in: 0.0058 cm

    Explanation
    OCEAN METHOD explanation: Decimal is PRESENT - so PACIFIC OCEAN (left side of number) - find the first number that is not a zero (5) - once it is found that number is significant and everything after it is also significant
    RULES METHOD explanation: RULE 3) Leading zeros are never significant

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  • 3. 

    How many significant figures are in:  1.4500 cm

    Explanation
    OCEAN METHOD explanation: Decimal is ABSENT - so Atlantic OCEAN (right side of number) - find the first number that is not a zero, it is a (5) - once it is found that number is significant and everything after it is also significant
    RULES METHOD: Trailing zeros are only significant if there is a decimal.
    RULE METHOD explanation: RULE 4) Trailing zeros are only significant if there is a decimal

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  • 4. 

    How many significant figures are in:  7.108e2 cm

    Explanation
    OCEAN METHOD: Decimal is ABSENT - so Atlantic OCEAN (right side of number) - find the first number that is not a zero, it is an (8) - once it is found that number is significant and everything after it is also significant
    RULES METHOD: Zeros sandwiched between numbers 1 thru 9 are significant.
    RULES METHOD: RULE 2) Zeros smashed between 1-9 are significant.

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  • 5. 

    How many significant figures are in:  14.6 cm

    Explanation
    OCEAN METHOD explaination: Decimal is PRESENT - so PACIFIC OCEAN (left side of number) - find the first number that is not a zero, it is a (1) - once it is found that number is significant and everything after it is also significant
    RULES METHOD explaination: The numbers 1 thru 9 are always significant
    RULES METHOD: RULE 1) Numbers 1,2,3,4,5,6,7,8,9 are ALWAYS significant.

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  • 6. 

    How many sig figs are in the measurement 100 miles?

    Explanation
    OCEANS explanation: the decimcal if absent, so start on the Atlantic ocean side and find your first number that is a 1,2,3,4,5,6,7,8,9. The 1 is the only number that qualifies.
    RULES explanation: Trailing zeros are only significant if there is a decimal. No decimal, so those 2 zeros are not significant.

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  • 7. 

    There are 512 students enrolled at Bushland HS.  How many sig figs are in that number?

    Explanation
    Sig figs are only in measurements. You can count students, counting is NOT a measurement.

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  • 8. 

    Only __________ have sig figs?

    Explanation
    Sig figs, or significant figures, are a way to indicate the precision or accuracy of a measurement. They are used to show the number of reliable digits in a measurement. Therefore, only measurements have significant figures, as they are the values that are being measured and have a certain level of precision associated with them. Other types of data or information may not have sig figs as they may not involve measurements or quantifiable values.

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  • 9. 

    Which measurement has 6 sig figs?

    • A.

      100000 meters

    • B.

      654321 people

    • C.

      5.47832 centimeters

    • D.

      0.00092 mililiters

    Correct Answer
    C. 5.47832 centimeters
    Explanation
    The question says find the measurement with 6 sig figs. The number of people is not a measurement. It is a counting number.

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  • 10. 

    There are 420 apples on the apple tree.   420 apples has 2 sig figs.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Only measurements have sig figs. 420 apples has NO sig figs because it is NOT a measurement. Things you can count do NOT have sig figs. Counting is not a measurement

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  • 11. 

    Find all numbers with no sig figs.

    • A.

      0.20 miles

    • B.

      5.5 e2 cm

    • C.

      2.3e1 atoms

    • D.

      34 liters

    • E.

      0.10 cents

    Correct Answer(s)
    C. 2.3e1 atoms
    E. 0.10 cents
    Explanation
    Only measurements have sig figs. Atoms and cents are not measurements, therefore do not have sig figs.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 11, 2015
    Quiz Created by
    Kyle Pearson
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