Use any of the analysis tools we have discussed so far to determine how consistent the data are with the model. Submit your analysis spreadsheet(s) and a document that interprets your results.
You are encouraged to bring in ‘stretchy’ objects from home to test during the
second lab session. Describe the system or question that you plan to test during the
second session of the lab.
a. What system and/or question will you be testing?
b. Why is this system or question interesting?
c. When do you expect Hooke’s law to be an appropriate model?
d. When do you expect it to be an inappropriate model?
e. How will you know? (i.e. how will you test it?)
An experimenter has collected data of an elastic system and wants to determine
whether the data are described by the Hooke’s law model: . The
experimenter collected these data by seJing a meter stick on the lab table in the
direction that the spring is stretched. The experimenter then stretched the spring by one
centimeter at a time and recorded the corresponding force measurement at each
Extension
(m)
Force
(N)
Uncertainty
in Force (N)
0.00 0.01 0.032
0.01 0.73 0.009
0.02 1.57 0.009
0.03 2.39 0.015
0.04 3.38 0.021
0.05 4.06 0.003
0.06 4.78 0.032
0.05 4.05 0.026
0.04 3.33 0.021
0.03 2.34 0.033
0.02 1.58 0.015
0.01 0.81 0.024
0.00 0.03 0.035
Fx = − kΔx
PHYS 2014 Lab Instructions Unit 3 – 3 University of Minnesota Duluth
location. After stretching the spring by six centimeters, the experimenter relaxed the
spring by one centimeter at a time until the extension returned to zero.
f. Use any of the analysis tools we have discussed so far to determine how
consistent the data are with the model. Submit your analysis spreadsheet(s)
and a document that interprets your results.
g. Based on your analysis, what should the experimenter do next?
