Accuracy vs. Precision in Measurement
Explore the concepts of accuracy and precision in scientific measurements with this Grade 7 science worksheet, featuring real-world examples and practice questions.
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Accuracy vs. Precision in Measurement
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Read each question carefully and answer to the best of your ability. This worksheet will test your understanding of accuracy and precision in scientific measurements.
What is the difference between Accuracy and Precision?
In science, accuracy refers to how close a measurement is to the true or accepted value. Precision refers to how close repeated measurements are to each other, regardless of whether they are close to the true value.
1. A student measures the length of a desk three times and gets 1.50 m, 1.51 m, and 1.49 m. The actual length of the desk is 1.80 m. How would you describe these measurements?
Accurate and precise
Accurate but not precise
Precise but not accurate
Neither accurate nor precise
2. Which of the following scenarios best describes an accurate measurement?
Hitting the same spot on a target repeatedly, but far from the bullseye.
Hitting the bullseye on a target with all shots.
Hitting different spots all over the target.
Missing the target entirely with all shots.
3. When a measurement is close to the true value, it is considered .
4. When repeated measurements are close to each other, they are considered .
5. It is possible for measurements to be precise but not accurate.
True
False
6. A highly accurate measurement is always also highly precise.
True
False
7. Describe a real-world example where a measurement could be precise but not accurate. Explain your reasoning.