Science
LAB 09 Northern Virginia Community College Finding a Spring Constant Lab Report

LAB 09

Northern Virginia Community College

LAB

### Question Description

The lab is very straight forward and I need the solutions to be typed into the same.doc file provided (need ALL parts of solution to be highlighted). Also, will need a copy of the .cmbl file for the LoggerPro portion of the lab (This is very important for my grade).

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PHY 231

Lab 09 - Finding a Spring Constant
If a spring is not compressed or stretched too much, it should
obey Hooke’s Law. According to this Law, if an additional
force, Fy, acts on the spring then the change in the spring
Figure 1: A
length, y, will be directly proportional to that force. The
15 gram
spring constant, k, for a Hooke’s Law spring is defined as the
massholder
constant of proportionality that relates the two variables, so
Origin on a spring.
that Fy = ky . We have created a digital movie that shows a
Initial
spring clamped to a rod so its top end cannot move. The
mass
movie actually consists of a series of still “photos” showing
15 g
the spring stretching as more and more mass is added to its
bottom end.
Your task in this activity is to verify Hooke’s Law for a spring and determine its spring constant, k. Before answering
questions, open the file in QuickTime Player. To “view” it, just advance frame-by-frame using
the right arrow key (→) on your keyboard. Then answer the following questions. Note: Assume that the center of the
black band at the bottom end of the spring in the first frame of the movie (as shown in Figure 1) is the origin of a
conventional x-y coordinate system.
1. Preliminary Questions

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