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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define accuracy in one sentence.
💡 Hint: Think about real-life situations where you measure something.
Question 2
Easy
What is precision?
💡 Hint: Consider multiple attempts at the same measurement.
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 accuracy refer to?
- Closeness to a true value
- Reproducibility of measurements
- Average of multiple measurements
💡 Hint: Think about how precision differs from accuracy.
Question 2
True or False: A measurement can be precise but not accurate.
- True
- False
💡 Hint: Use the dartboard analogy to think through this.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A laboratory uses a balance that consistently reads 2 grams heavier than the actual mass. If they weigh a sample of 20 grams, describe the effects on accuracy and precision.
💡 Hint: Consider how systematic errors impact the readings.
Question 2
During an experiment, a student takes measurements that are very close to each other but far from the actual concentration of a solution. Suggest improvements to increase accuracy.
💡 Hint: Identify sources of potential systematic error and how to correct them.
Challenge and get performance evaluation