INTRODUCTION
The density of a material is given by the formula D =
m/V (Density = mass divided by Volume). From
Geometry, it is known that the volume of a rectangular solid is length times
width times height (V = l^{.}w^{.}h). It can be assumed that the thickness of the
aluminum foil is the height. The density
of aluminum can be looked up in a table.
Therefore, using substitution and then rearranging the equation, one can
solve for the height.
PROCEDURE
1. Select four (4) rectangular pieces of
aluminum foil. Each piece should be a
different size.
2. Determine the mass of each piece of
foil (in grams). Record these measurements
in the data table below.
3. Carefully measure the length and the
width of each piece of aluminum foil. (Make
sure you use the metric
side of the ruler!) Record these measurements in the data table
also.
4. The accepted thickness of aluminum
foil is 0.00254 cm for
heavy duty aluminum foil. The
density of
aluminum is 2.702 g/cm^{3}.
DATA TABLE
Trial 
Mass (g) 
Length (cm) 
Width (cm) 
Thickness (cm) 
Error (cm) 
Percent Error 
1 






2 






3 






4 






Average 






CALCULATIONS
You must show sample calculations (in detail  for
only one of your trials) for (A) thickness, (B) error, and (C) percent error.
NOTE: error =  accepted value – experimental value 
ANALYSIS
Under your sample calculations, write out one potential source of error* in the
lab. * Errors in the measuring device or
the reading of the measuring device are not acceptable. For example,
"we read the ruler incorrectly." would NOT be an acceptable source of
error. Your source of error should come
from the lab procedure that you followed or assumptions that were made about
the materials used.
THIS LAB IS
DUE ON:
**CRITERIA IN ORDER TO RECEIVE CREDIT FOR THIS ASSIGNMENT:
*
All numbers are clear & legible. *
All numbers are labeled with their correct units.
* Calculations are shown in
detail. * Calculations are shown in a neat and logical order.
*
No messy crossouts or eraser marks.
* Failure to follow these criteria will result in your having to resubmit your
lab. It will be considered a late grade
when you resubmit.