Practice Absolute Uncertainty (11.1.4.1) - Chapter 11: Measurement and Data Processing

Practice: Absolute Uncertainty

Lesson 11.1.4.1Measurement and Data Processing

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8 questions

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6 sample questions

Question 1.
What is absolute uncertainty?
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Think about the range in which the true value might lie.
Question 2.
How would you express a reading of 22.5 °C with an uncertainty of ±0.5 °C?
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Use the ± sign to denote the uncertainty.
3Question 3.
What does absolute uncertainty represent?
- The exact measurement of an object
- The range of possible true values of a measurement
- The minimum value that can be measured
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Consider how we express uncertainty in measurements.
4Question 4.
True or False: The absolute uncertainty changes with each measurement taken.
- True
- False
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Think about how various tools might have different precision levels.
Question 5.
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.
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Don't forget to consider half the smallest division!
Question 6.
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?
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Use the formula for percentage uncertainty.

4 more questions in this section. Enroll free to practise them all.