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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
If you have a measured value of 10.0 ± 0.5 and you multiply it by 2.0 ± 0.1, what is the relative uncertainty?
💡 Hint: Remember to square both relative uncertainties and then sum their values.
Question 2
Easy
What is absolute uncertainty if you multiply 3.0 ± 0.2 by 4.0 ± 0.1?
💡 Hint: First, calculate the product, then apply the propagation formula.
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 happens to the absolute uncertainty when multiplying two values?
- It becomes smaller
- It remains constant
- It increases
💡 Hint: Think about how errors in measurements combine.
Question 2
True or False: Relative uncertainties are added directly when dividing measured quantities.
- True
- False
💡 Hint: Remember the rules for handling uncertainties.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A researcher measures two lengths: 20.0 ± 0.5 cm and 5.0 ± 0.2 cm. Determine the area and its uncertainty.
💡 Hint: Don’t forget to square the errors separately before adding.
Question 2
A liquid's density is calculated based on its mass (56.0 ± 0.3 g) over volume (20.0 ± 0.1 mL). Calculate the density and its uncertainty.
💡 Hint: Apply the relative uncertainty principle here for completeness.
Challenge and get performance evaluation