1.3.2 - Measurement of Physical Properties
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Practice Questions
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Define quantitative measurement.
💡 Hint: What do you typically need to report a measurement?
What does SI stand for?
💡 Hint: Think about global standardization in measurements.
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Interactive Quizzes
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What does SI stand for?
💡 Hint: It's related to global measurements.
Is precision related to how close measurements are to the true value?
💡 Hint: Think of a dartboard analogy—hitting the same spot doesn't mean it's the bullseye!
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Challenge Problems
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If you measure the length of a table to be 150 cm over several trials and get values of 149.8 cm, 150.2 cm, and 150.0 cm, how would you describe the precision and accuracy of your measurements?
💡 Hint: Calculate the average to check against the true length.
You have an analytical balance that reads 5.00 g when weighing 5.10 g substance. Can the balance still be considered accurate? Explain.
💡 Hint: Think about how discrepancies affect trust in instruments.
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