bhs physics lab #1 measurement, sig figs, excel, data analysis
DESCRIPTION
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 valuesTRANSCRIPT
BHS PHYSICS
LAB #1Measurement,
Sig Figs, EXCEL, Data Analysis
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
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
BHS PHYSICS
Background Sketch
d C A
BHS PHYSICS
Data Table
BHS PHYSICS
Graph #1
RADIUS (cm)
CIR
CU
MFE
RE
NC
E (c
m)
BHS PHYSICS
Graph #2
RADIUS (cm)
AR
EA
(cm
)
BHS PHYSICS
Graph #3
RADIUS ^2 (cm2)
AR
EA
(cm
)
BHS PHYSICS
Lab Write-up Requirements• DATA TABLE• GRAPHS WITH TRENDLINES
–SLOPE ANALYSIS• CONCLUSION
BHS PHYSICS
LAB #1DATA
ANALYSIS
BHS PHYSICS
RADIUS (cm)
GRAPH #1: C vs rC
IRC
UM
FER
EN
CE
(cm
) C r
y = m x + bC = 2 r + 0
BHS PHYSICS
GRAPH #2: AREA vs RADIUS
RADIUS (cm)
AR
EA
(cm
)A rn
n = 2,3,?
BHS PHYSICS GRAPH #3: A vs. r2
RADIUS ^2 (cm2)
AR
EA
(cm
)
y = m x + b
Trendline:LinearRelationship: A r2
A = r2 + 0
A = r2
BHS PHYSICS
Cookie Law
2r r
A r2
4 x more cookie!!
How much more
cookie?
BHS PHYSICS
BHS PHYSICS
Pizza Law
2r r
A r2
4 x more pizza!!
Same as Cookie Law