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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
How many significant figures are in the measurement 0.0079?
💡 Hint: Focus on the non-zero digits.
Question 2
Easy
What are the significant figures in the number 20304?
💡 Hint: Count all non-zero digits.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What are significant figures used for in measurements?
- To express uncertainty
- To indicate precision
- Both A and B
💡 Hint: Think about what significant figures convey.
Question 2
True or False: The number 200 has two significant figures.
- True
- False
💡 Hint: Consider how trailing zeros affect the count of significant figures.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You measured the mass of a rock as 85.870 grams and volume as 40.0 cm³. Calculate the density and present it with the correct number of significant figures.
💡 Hint: Review how to round according to significant figures.
Question 2
If you calculate 3.005 - 0.0056 and want to report the answer correctly, what should it be?
💡 Hint: Pay attention to the decimal places in subtraction.
Challenge and get performance evaluation