Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
How many significant figures are in the number 0.00452?
💡 Hint: Count only the non-zero digits and any digits in between.
Question 2
Easy
What is 2500 g in scientific notation with two significant figures?
💡 Hint: Remember to consider the significance of the trailing zero.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
How many significant figures are in the number 105.004?
- 5
- 6
- 4
💡 Hint: Count all the significant digits including those between.
Question 2
True or False: The number 0.00720 has four significant figures.
- True
- False
💡 Hint: Check the digits to see how many truly count.
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Challenge Problems
Push your limits with challenges.
Question 1
You measure a length as 150.0 cm with an absolute uncertainty of ±0.1 cm. Report the measurement with its uncertainty and stated significant figures.
💡 Hint: Consider the precision of your measurement.
Question 2
In a lab, the mass of a sample is recorded as 32.00 g with a possible experimental error of ±0.05 g. Calculate the range of mass considering the uncertainty.
💡 Hint: Use the original mass and subtract/add the uncertainty.
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