Introduction to Accuracy and Precision (includes Relative Error)

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Physics
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9th - 10th Grade
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between accuracy and precision?
Both accuracy and precision are about closeness to the accepted value.
Accuracy is about closeness to the accepted value, while precision is about repeatability.
Accuracy is about repeatability, while precision is about closeness to the accepted value.
Both accuracy and precision are about repeatability.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes accuracy?
How close a measurement is to the accepted value.
The difference between the highest and lowest measurements.
The number of decimal places in a measurement.
The ability to repeat an experiment with the same results.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the bull's eye represent in the accuracy and precision analogy?
The measured value.
The average value.
The real value.
The accepted value.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If all measurements are close to each other but far from the accepted value, what can be said about the experiment?
Low accuracy, high precision.
Low accuracy, low precision.
High accuracy, low precision.
High accuracy, high precision.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relative error used to measure?
Precision of measurements.
Neither accuracy nor precision.
Accuracy of measurements.
Both accuracy and precision.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are the dimensions of relative error determined?
By the cancellation of dimensions in observed and accepted values.
By the multiplication of observed and accepted values.
By the ratio of observed to accepted values.
By the difference between observed and accepted values.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is required to determine precision in an experiment?
Multiple measurements to compare.
A single measurement.
The real value.
The accepted value.
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