Mixed review on Percent error, sig figs, accuracy and precision

Front

How close a measurement is to the accepted value is called..

Back

Accuracy

Front

A zero percent error in a lab is accomplished by...

Back

getting the exact result as the expected result in a lab

Front

How many sig figs are in 927.0020?

Back

7

Front

Which zero's never count for significant figures?

Back

Leading Zero's

Front

Determine the density of an object with a mass of 10 grams and a volume of 5.00 mL. (Report your answer in the correct form of significant figures)

Back

2 g/mL

Front

What is the definition of precision in measurements?

Back

Precision refers to the consistency of repeated measurements, regardless of their closeness to the accepted value.

Front

What is the formula for calculating percent error?

Back

Percent Error = |(Experimental Value - Accepted Value) / Accepted Value| x 100%.

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 them, and trailing zeros in the decimal part.

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.

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.