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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define the term accuracy in measurement.
💡 Hint: Think about what it means to hit a target.
Question 2
Easy
What is the difference between systematic and random error?
💡 Hint: Consider a scale that is consistently off vs. unpredictable fluctuations.
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 the true value
- Reproducibility of measurements
- Type of error
💡 Hint: Think of a target or bullseye.
Question 2
True or False: Random errors are always consistent.
- True
- False
💡 Hint: Think about fluctuations in repeated measurements.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You measure a substance three times with results of 2.00 g, 2.01 g, and 1.99 g. Calculate the average and the standard deviation of these measurements.
💡 Hint: Use the standard deviation formula considering how far each measurement varies from the mean.
Question 2
If your experimental result is 15.2 ± 0.2 (in mm), compare this with a theoretical value of 15.5 mm. Are these results significantly different?
💡 Hint: Consider how uncertainty influences significance in measurements.
Challenge and get performance evaluation