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EXAS
I
NSTRUMENTS
I
NCORPORATED
G
ETTING
S
TARTED WITH THE
CBL 2™ S
YSTEM
43
8.
Position the probe for the first measurement and then
press
Í
to record the first measurement. You should
see a screen like the screen at the right.
9.
Key in the distance from the tip of the light probe to the bulb.
10.
Repeat the procedure above, making a series of light measurements from
different distances. Six to eight measurements should be sufficient. After you
have made all your measurements, press
¿
to end the data collection phase
of this experiment.
The screen below shows the results from a typical run.
Analysis
Work through the questions on the Student Data Reporting Sheet.
This experiment looks at a simple relationship but there are many potential sources
of experimental error. You will attempt to identify as many potential sources of
error as possible and either minimize or compensate for these problems.