PHY 2048L
Lab 8

Simple Harmonic Motion

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Updated: 1/21/2013

We will be doing "Lab 20", exactly as described in the lab manual.

Guiding Question:

Note: Give BOTH the decimal number C determined in Calculation Table 3 and the simple whole number fraction obtained in your answer to post-lab question 3.

In addition, your abstract should also say whether your spring is "linear" (the answer to post-lab question 1), your value for the spring constant and the % difference between it and the one from your fit in Calculation Table 3, and whether the period depends on the amplitude of the oscillation (your answer to post-lab question 2). The Summary of the Argument should address each of these items in more detail and use them (and perhaps your answer to post-lab question 4) to conclude whether you have overall satisfactory agreement between theory and experiment for simple harmonic motion.

Preparing for the lab:

Read the theory for "Lab 20" (pages 207 to 208) in the lab manual before answering the questions on LON-CAPA.


We will follow the procedure in the lab manual and use a stopwatch to measure the time required for the system to make 10 oscillations.


As you can see below, the setup for this lab is almost the same as for the one on conservation of energy. The difference is the addition of a stopwatch, which is not shown in this picture. (You will not have the motion sensor that is shown sitting on the floor, and the computer will only be used for the least-squares fit.)

spring support with motion sensor on floor connected to interface

As in the conservation of energy lab, you are free to position the meter stick and spring so that it is easy to make the position measurements.


 ?? Contact me if you have any questions.