11.1.4.1 - Absolute Uncertainty
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Practice Questions
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What is absolute uncertainty?
💡 Hint: Think about the range in which the true value might lie.
How would you express a reading of 22.5 °C with an uncertainty of ±0.5 °C?
💡 Hint: Use the ± sign to denote the uncertainty.
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Interactive Quizzes
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What does absolute uncertainty represent?
💡 Hint: Consider how we express uncertainty in measurements.
True or False: The absolute uncertainty changes with each measurement taken.
💡 Hint: Think about how various tools might have different precision levels.
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Challenge Problems
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You measure the length of a metal rod as 20.0 cm using a ruler with a scale of 0.5 cm. Calculate the absolute uncertainty and report the measurement correctly.
💡 Hint: Don't forget to consider half the smallest division!
If a digital scale reads 52.00 g with an uncertainty of ±0.02 g, what would the percentage uncertainty be and how should you report the measurement?
💡 Hint: Use the formula for percentage uncertainty.
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