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# lab8 - 7 Test the series with two different amounts of...

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Brad Tensen Physics lab 211 Sec 54 Spring Motion Introduction: When a force is applied to a spring, it stretches to a greater length, until the force of the spring balances the other force. When the force is taken away the spring usually returns to its original length. The amount of stretching is proportional to the applied force: F=ks. The equation only works if the spring is not stretched passed its elastic limit. Procedure: 1. First, use one spring and measure the distance (h0) from the bottom of the spring to the top when the coils are separated by a small weight (m0). 2. Then apply more weight (m) to the spring and measure the length of the spring again (h) 3. Calculate h-h0=s. 4. After finding s, find k by using the equation k=mg/s 5. Do this for two different springs. 6. Next, attach two springs together end to end (series)
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Unformatted text preview: 7. Test the series with two different amounts of weights by going through the same procedure. 8. Then make the two springs run parallel to each other. 9. Do the same tests and procedures as before. 10. Do it with two different amounts of weights. 11. Record results on the data sheet. Conclusions: After all the tests and calculations we found that our k series equals 2.835. Our k parallel equals 10.075. We also found that k1k2/(k1+k2)=3.03 and that k1+k2=12.12. Our results are fairly close to what they should be. The problems and reasons that the numbers are a little off could be from the measuring. It was difficult to get an accurate measurement under the conditions and using to tools that we did....
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