Questions and Answers
How many significant figures are in the number 0.005100?
What is the correct number of significant figures in 150.0?
Which of the following numbers has 2 significant figures?
Identify the number of significant figures in 500.0.
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In the number 0.000450, how many significant figures are present?
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Study Notes
Rules for Significant Figures
- All nonzero digits carry significance in measurements.
- Any zeros that exist between nonzero digits are also considered significant.
- Leading zeros, located before the first nonzero digit, do not count as significant figures.
- Trailing zeros after a whole number that has a decimal point are classified as significant.
- Trailing zeros found to the right of a decimal point are significant, enhancing the precision of the measurement.
Examples of Significant Figures
- The number 300042 comprises six significant digits, emphasizing the importance of all numbers in determining efficacy.
- In the example of 0.000034, there are two significant digits, illustrating that zeros before nonzero digits do not contribute.
- For 0.0002500, the figure accounts for four significant digits, indicating that trailing zeros are counted when a decimal is involved.
- The whole number 190000 has only two significant digits, as trailing zeros in whole numbers without a decimal point are considered ambiguous—favoring a conservative interpretation.
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Description
Test your understanding of the rules regarding significant figures in this quiz. You'll explore how to identify significant digits in various numbers and enhance your numerical accuracy skills. Perfect for students in science and mathematics classes!
