Choppy+Group+1

Brandon Does the length of the string, weight on the end of the string, or angle of the drop effect a pendulums range in swings the most in 15 seconds?

The length of the string made a diffference in our range (average) of cycles of swings. There was a big difference between 10cm and 100cm. The pendulum hit the desk a lot of times during many tests so we restarted for it to be a fair test. We got 17 as an average on 10cm and 7 as an average on 100cm. Our averages rapidly dropped a lot in the tests. We got some of the same averages for different tests. For 50cm I got 10 swings for all of the 3 tests. I observed the number of averages for each test, and observed the decline in the averages. I think the length of the string was making the decline in averages, because as the string got longer the lower our averages got. The longer the string was the longer the longer it took to do a cycle. Also with the amount of force of the drop of the drop it didn't change. So the longer the string got, the smaller the average got and the cycle of swings got. Melia

Does the length of string effect the number of cycles the string will complete in 15 seconds?

In the swinger's lab we concluded that the longer the string the less cycles it will complete. We started at 10 centimeters and got a full 18 cycles. But as we got to 20 centimeters the average cycles went to 15. Then we went to 30 centimeters and the number of cycles decreased to 12. At 40 centimeters the cycles were 11; and 9 cycles for 50 centimeters. It stayed 9 for 60 centimeters then went to 8 cycles for 70 through 90 centimeters. By the time we got to 100 centimeters the cycles had decreased to 7. At first our hypothesis was the longer the string the more cycles it would complete. But our experiment proved it to be the opposite. The longer the string the less cycles completed. My theory of why is that the longer the string the longer the distance it has to travel between each cycle; therefore, taking more time to complete each swing. This leaves us with not as many swings by the time we reached the 15 second mark. Noah

Problem- Does the length of the string,weight on the end of then string,or the angleof the drop effect a pendulums range in 15 seconds? The weight stayed the same the entire test. We changed the string 10 times 10,20,30,40,50,60,70,80,90,100. The string changed from 10 to a 100 and the 10 centameter string had more cycles by 11 than the 100 centameter string because the length of the string made a diffrence. The test of the sring reached the 15 second mark on all tests.