Accuracy, Precision, Significant Figures
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the difference between accuracy and precision?
Back
Accuracy refers to how close a measured value is to the actual (true) value, while precision refers to how close the measured values are to each other.
2.
FLASHCARD QUESTION
Front
What does it mean if a set of measurements is precise but not accurate?
Back
It means that the measurements are consistent and close to each other, but they are not close to the actual value.
3.
FLASHCARD QUESTION
Front
What are significant figures?
Back
Significant figures are the digits in a number that contribute to its precision, including all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.
4.
FLASHCARD QUESTION
Front
Which zeros do not count as significant figures?
Back
Leading zeros do not count as significant figures.
5.
FLASHCARD QUESTION
Front
How many significant figures are in the number 0.00456?
Back
There are three significant figures in the number 0.00456.
6.
FLASHCARD QUESTION
Front
How do you determine the number of significant figures in a measurement?
Back
Count all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.
7.
FLASHCARD QUESTION
Front
What is an example of a measurement that is accurate but not precise?
Back
If a set of measurements is 7.1 cm, 7.2 cm, and 7.3 cm, but the actual length is 7.0 cm, the measurements are accurate but not precise.
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