Measurement and Significant Figures
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What are significant figures?
Back
Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.
2.
FLASHCARD QUESTION
Front
How do you determine the number of significant figures in a measurement?
Back
Count all non-zero digits, any zeros between them, and trailing zeros in a decimal number. Leading zeros are not counted.
3.
FLASHCARD QUESTION
Front
What is the difference between accuracy and precision?
Back
Accuracy refers to how close a measurement is to the true value, while precision refers to how consistent repeated measurements are.
4.
FLASHCARD QUESTION
Front
What does it mean if measurements are precise but not accurate?
Back
It means that the measurements are consistent with each other but are far from the true value.
5.
FLASHCARD QUESTION
Front
What is the true value in measurements?
Back
The true value is the actual or accepted value that is considered correct.
6.
FLASHCARD QUESTION
Front
How many significant figures are in the number 0.002040?
Back
There are 4 significant figures.
7.
FLASHCARD QUESTION
Front
What is the correct measurement of an object that measures 2.30 cm?
Back
The correct measurement is 2.30 cm, which indicates precision.
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