"Observe 2 rubber bands in series vs. a single rubber band The system you observed previously consists of a thin rubber band pulling against a thick rubber band. Flip a coin. • If it comes up Heads, add a paper clip and a second thin rubber band to the system in such a way that your system consists of a chain of two thin rubber bands pulling against a single thick rubber band. • If it comes up Tails, instead add a second thick rubber band in such a way that your system can be viewed as a chain of two thick rubber bands pulling on a single thin rubber band. You now have two rubber bands pulling against a single rubber band. To put this just a little differently, you have a 2-rubber-band system pulling against a 1-rubber-band system. Repeat the preceding experiment using this system. Observe the length of the 2-rubber-band chain vs. the length of the 1-rubber-band chain. Report the slope of your graph in the indicated space below. Starting in the second line, discuss • a description of your system • how the slope of the this graph differs from that of your previous graph • why the slope should differ • how you would expect the slope to differ if the two thin rubber bands were identical • to what extent your results support the hypothesis that the two thin rubber bands do not in fact behave in identical ways. -------->>>>>>>>>> describe system, how slope differs, why, expectations if thin rb identical, support for hypothesis not identical My Question: I have completed this experiment and recieved the following data Think Length 7.5 7.6 7.8 8 Thin1 Length 6.4 6.8 7.2 7.5 Thin 2 Length 6.4 6.7 7.1 7.5 I'm confused what you are asking for in the graph. Do I add the two thin lengths together and compare that number to the thick length? Or do I have two lines on the graph comparing thin 1 to the thick and thin 2 to the thick thus giving me two slopes?" "My Question: I have completed this experiment and recieved the following data
"For the Introductory Pendulum Experiment: The experiment that I completed and submitted had the following measuring instructions: Determine the lengths of the pendulums to be used in your experiment: Take your height in inches, subtract 30 and divide your result by 5. Round your result off to the next whole number. This will be the length in centimeters of your first pendulum. (For example if you are 91 inches tall (unlikely but not impossible), you would subtract 30 to get 61, then divide 61 by 5 to get 12.2. This rounds off to 12, so your pendulum would be 12 cm long). Double the length of your first pendulum. This is the length of your third pendulum. Double the length of your third pendulum. This is the length of your fifth pendulum. Double the length of your fifth pendulum. This is the length of your seventh pendulum. Double the length of your seventh pendulum. This is the length of your ninth pendulum. The Introductory Pendulum Experiment is on my access page and your responses are listed. Your comment was: A 25 cm pendulum will complete about 60 cycles in a minute; a 96 cm pendulum will complete about 30 cycles in a minute. It's not clear how you got these results. They do show the correct proportionalities; but the numbers appear to be off by a fairly constant factor. I noticed that the Introductory Pendulum Experiment on my access page asked for the following measuring instructions: Hold the string so that the length from the point at which you are holding it to the center of the object is about equal to the distance from your wrist to your fingertips. Measure the length of this pendulum, from the point where you hold it to the center of the suspended mass, as accurately as you can. Start the pendulum oscillating, but don't make it swing too far--keep the distance from one end of the swing to the other less than half the length of the pendulum. Using a clock with a second hand, determine how many times this pendulum oscillates in 60 seconds. Repeat your count at least a few times, and continue until you are sure you know to the nearest whole cycle how many times it oscillates back and forth in a minute. Repeat with a pendulum whose length is equal to the distance from your fingertip to your elbow. Repeat once more with a pendulum whose length is equal to the distance from your toes to your hip. The rest of both forms of the experiment seem the same. I'm just confused on if you graded my answers based on the measurements listed on my access page. Based on what your comments were, I'm confused on if I need to redo the experiment. If you want me to redo the experiment, then which measurements should I use, the one's from the original experiment, or the ones on my acces page?" "The rest of both forms of the experiment seem the same. I'm just confused on if you graded my answers based on the measurements listed on my access page. Based on what your comments were, I'm confused on if I need to redo the experiment. If you want me to redo the experiment, then which measurements should I use, the one's from the original experiment, or the ones on my acces page?" "Based on what your comments were, I'm confused on if I need to redo the experiment. If you want me to redo the experiment, then which measurements should I use, the one's from the original experiment, or the ones on my acces page?"