Practice For Powers (and Roots) (11.1.5.3) - Chapter 11: Measurement and Data Processing

Practice: For Powers (and Roots)

Lesson 11.1.5.3Measurement and Data Processing

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10 questions

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6 sample questions

Question 1.
What is the percentage uncertainty in a measurement of 10.0 ± 0.2 g?
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Divide the absolute uncertainty by the measured value.
Question 2.
If a volume is measured as 3.0 ± 0.1 L, what is the absolute uncertainty?
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It's given directly in the measurement.
3Question 3.
What happens to percentage uncertainty when you square a value?
- It decreases
- It remains the same
- It doubles
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Remember the percentage uncertainty formula.
4Question 4.
True or False: The absolute uncertainty decreases when a measurement is multiplied by a number.
- True
- False
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Consider how uncertainties scale with multiplication.
Question 5.
A cylinder's height is measured as 10.0 ± 0.5 cm and the diameter as 4.0 ± 0.1 cm. Calculate the volume and the percentage uncertainty in that volume.
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Don’t forget that the height contributes to the final uncertainty along with the diameter.
Question 6.
A temperature of 25 ± 0.5 °C affects the volume directly measured as 1.5 L ± 0.02 L. Calculate the volume at this temperature while considering the uncertainties.
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Always account for how temperature fluctuations impact measurements in conjunction with uncertainties!

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