Practice - Precision, Accuracy, Significant Figures, and Scientific Notation
Practice Questions
Test your understanding with targeted questions
What is accuracy?
💡 Hint: Think of how precise your measurement needs to be.
How many significant figures are in 0.00320?
💡 Hint: Count the non-zero digits and the '0' that is between them.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does accuracy mean?
💡 Hint: Think about how you determine the correctness of a measurement.
True or False: Precision refers to how consistently a measurement can be reproduced.
💡 Hint: Remember the dartboard analogy?
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Challenge Problems
Push your limits with advanced challenges
You measure the diameter of a quarter and obtain a result of 2.5 cm. How would you express this measurement in scientific notation while maintaining significant figures?
💡 Hint: Remember that moving the decimal doesn't change the value; just how it's presented.
A set of measurements yield the following values: 5.00 m, 5.1 m, and 5.102 m. What is the sum of these values, accurately expressed with the correct number of significant figures?
💡 Hint: Keep in mind which number dictates the rounding in addition.
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Reference links
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