Question

part a completion
use this completion exercise to check your understanding of the concepts and terms that are introduced in this section. each blank can be completed with a term, short phrase, or number.
the 1 of a measurement describes how close the measurement comes to the true value. the 2 of a measurement depends on its reproducibility. an 3 is a value measured in the lab. 4 is calculated by subtracting the 5 from an experimental value. percent error is calculated by dividing the 6 of the error by the accepted value and then multiplying by 7.
large and small numbers are more easily handled when expressed in 8. significant figures in a measurement include all of the digits that are 9 plus a last digit that is 10.

1. accuracy
2. precision
3. experimental
4. error
5. accepted
6. experimental
7. 100
8. significant figures
9. known
10. estimated

Explanation:

1. Accuracy is defined as how close a measurement is to the true value.
2. Precision is related to the reproducibility of a measurement.
3. A value measured in the lab is an experimental value.
4. Error is calculated by subtracting the accepted value from the experimental value.
5. Accepted value is the known - correct value.
6. In percent - error calculation, the absolute value of the error is used.
7. Percent error is found by multiplying by 100.
8. Scientific notation is used to handle large and small numbers easily.
9. Significant figures include known digits.
10. The last digit in significant figures is an estimated digit.

Answer:

1. accuracy
2. precision
3. experimental
4. error
5. accepted
6. absolute value
7. 100
8. scientific notation
9. known
10. estimated