2.) When performing a measurement, how you know how many significant digits to record?

3.) Comment on the nature of the last significant digit in any measured value.

4.) When you are given a numerical value that is the result of a measurement, what do the numbers of significant digits tell you about the precision of the measurement? About its accuracy?

5.) What rules are followed in determining the number of significant digits in the answer to a calculation involving measured values?

6.) What is an "exact" number? How does it affect calculations?

7.) In a multi-step calculation, how should significant figures be handled?

8.) How does the course policy on significant figures differ from that of the textbook?

9.) How should you round a numerical result so that it contains the proper number of significant digits?

Digits are defined as significant if they contribute to precision. These numbers include all non-zero digits,