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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is absolute uncertainty?
💡 Hint: Think about the range in which the true value might lie.
Question 2
Easy
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.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
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
💡 Hint: Consider how we express uncertainty in measurements.
Question 2
True or False: The absolute uncertainty changes with each measurement taken.
- True
- False
💡 Hint: Think about how various tools might have different precision levels.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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!
Question 2
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.
Challenge and get performance evaluation