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GENERAL PHYSICS
Measurements Lab
OSSM-ATC
August 16, 2006

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0.1 INTRODUCTION
In this lab, you will determine the experimental values of the
surface area
and
volume
of a slotted brass weight. You will also obtain the experimental value of the
density
of
brass, and compare to its accepted value.
You may assume the cross-sectional area of your weight has a shape as shown in the Fgure
below:
6
?
I
R
d
Also remember that the volume of a cylinder is given by
π
·
R
2
·
h
and the surface area by
2
·
π
·
R
2
+2
·
π
·
R
·
h
.
6
?
s
h
R
0.2 EQUIPMENT AVAILABLE
Vernier caliper, micrometer, meter stick, scale, and slotted brass weight (marked 50g, 100g,
and 200g).
1

0.3 PROCEDURE
•
Weigh the slotted weight. Report the measured mass,
m
meas
;
•
Use a vernier caliper
1
to measure
R
and
d
. Use the micrometer
2
to measure
h
.
•
Using the symbolic math toolbox of MATLAB, obtain the experimental volume and
experimental surface area. See section 0.5 below for help;
•
Calculate the density of brass,
ρ
exp
;
•

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