# CH03 – Significant Figures

Dates

- P4 – Friday, January 12th
- P5 – Tuesday, January 15th
- P7 – Tuesday, January 16th

Class Business

- Fall Semester Final Exam commentary
- Questions about grades?

Activity Recap

- Comments about measurement?
- What was challenging about acvtivity?

New Idea – Terms

- Precision
- Accuracy
- Error
- Uncertainty
- (you can LOOK IT UP!)

New Idea – Measurement & Significant Figures

- all measurements contain uncertainty
- all numbers are measurements
- so how do we deal with this?
- SIGNIFICANT FIGURES
- all certain digits and one good guess
- YES, all numbers contain a GUESS
- Hint: scientific notation helps!

Textbook Work

Homework

- Finish Textbook Work
- NOTE: pencil on paper, space work
- SHOW: given info and some indication of process
- DO NOT just write the answer

### Like this:

Like Loading...