1. BHS PHYSICS LAB #1 Measurement, Sig Figs, EXCEL, Data Analysis

2. BHS PHYSICS LAB #1: GOALS Take measurements with proper # of sig figs Enter, manipulate data on EXCEL Perform column calculations with EXCEL Graph data with trendlines Analyze plots: meaning of slope of functions Verify the relationships: –Circumference vs radius –Area vs radius

3. BHS PHYSICS Procedure Choose 5 different cylinders. Measure the diameter, circumference and Area of the bases of each cylinder Use EXCEL to compare measured values vs calculated values

4. BHS PHYSICS Background Sketch d C A

5. BHS PHYSICS Data Table

6. BHS PHYSICS Graph #1 RADIUS (cm) CIRCUMFERENCE (cm)

7. BHS PHYSICS Graph #2 RADIUS (cm) AREA (cm)

8. BHS PHYSICS Graph #3 RADIUS ^2 (cm 2 ) AREA (cm)

9. BHS PHYSICS Lab Write-up Requirements DATA TABLE GRAPHS WITH TRENDLINES –SLOPE ANALYSIS CONCLUSION

10. BHS PHYSICS LAB #1 DATA ANALYSIS

11. BHS PHYSICS RADIUS (cm) GRAPH #1: C vs r CIRCUMFERENCE (cm) C  r y = m x + b C = 2  r + 0

12. BHS PHYSICS GRAPH #2: AREA vs RADIUS RADIUS (cm) AREA (cm) A  r n n = 2,3,?

13. BHS PHYSICS GRAPH #3: A vs. r 2 RADIUS ^2 (cm 2 ) AREA (cm) y = m x + b Trendline:Linear Relationship: A  r 2 A =   r 2 + 0 A =  r 2

14. BHS PHYSICS Cookie Law 2r r A  r 2 4 x more cookie!! How much more cookie?

15. BHS PHYSICS

16. Pizza Law 2r r A  r 2 4 x more pizza!! Same as Cookie Law