Exam-style question
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What is the key difference between precision and accuracy, and when would each be more important in an experiment?.
Model answer
What a good answer should say
- The key difference is that precision measures the repeatability of measurements, while accuracy measures the closeness to the true value.
- Precision is crucial in experiments requiring consistent results, while accuracy is vital when the true value is known and must be approached.
Explanation
Why this works
This answer effectively compares the two concepts, identifies their key difference, and explains their relevance in different experimental contexts. It tests the student's ability to apply their knowledge to practical situations.
Common mistake
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