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Geiger Counter Lab 2011 geiger_counter_lab_20111

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Geiger Counter Lab – Table 1
Distance
(cm)
Background
2 cm
4 cm
6 cm
8 cm
10 cm
Trial 1
(cpm)
Trial 2
(cpm)
Average
(cpm)
Geiger Counter Lab Table 2
Trial
No
Shielding
Styrofoam
Cardboard
Aluminum
Glass
Ceramic
1
2
Avg
You can choose any 5 shielding materials for this part of the lab.
Geiger Lab Analysis
1. What were the responding, manipulated and
controlled variables in each experiment?
2. For each experiment, prepare a graph using
Excel or by hand. Follow the directions in
Graphing for Chemistry. Do an X-Y Scatter
(line) graph for the 1st and a bar graph for the
2nd.
3. What are 2 significant and real sources of error
in this lab that you experienced? How do they
affect your results?
Geiger Lab Conclusions
1. For each experiment:
What is the relationship between the
manipulated and responding variable.
2. Use numerical data to support your
conclusion.
3. How is this knowledge useful to people in
industries that use radioactivity like
medicine and power plants?
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