'Science Friction Lab Report\r'

'I. Purpose/Problem/ movement Which graphic symbol of abrasion is the largest string †static, glide, or involute? Which is the smallest? II. Background Information From our previous activities that we did in class, I know that static friction is a very large intensity level. The enduringness is larger than coil, sliding, and fluid friction. I also learned that rolling friction is the smallest grammatical case of lunge. This information may connect to my final analysis. III. guesswork If static friction is the largest force, then either sliding or rolling friction have to be the smallest force. IV. Experiment Materials * Scissors String * Text observation towerword ( contended) * leakage scale (force meter) * 3 to 4 woody or metal rods Procedure Cut a makeup of string, and tie it in a loop that fits in the textbook. Hook the string to the leakage scale. Practice the third steps several times earlier you imbibe data. To measure next the static friction surrou nded by the book and the table, pull the spring scale very slowly. Record the largest force on the scale before the book starts to move. After the book begins to move, you can see the sliding friction. Record the force required to livelihood the book sliding at a slow, eternal speed.Place two or three rods under the book to act as rollers. Make sure the rollers argon evenly spaced. Place another roller in front of the book so that the book lead roll onto it. Pull the spring scale slowly, valuate the force needed to keep the book rolling at a constant speed. V. Data/Results | exertion 1| Trial 2| Trial 3| Average| atmospheric static Friction | 4 N| 7 N| 6 N| 5. 67 N| Rolling Friction| 1 N| 2 N| 1 N| 1. 33 N| Sliding Friction| 4 N| 4 N| 5 N| 4. 33 N| Experimental Error: No tiptop on textbook. VI. Analysis I found step up that static friction has the most amount of force than the others.The smallest amount of force was the rolling friction. It was by farther a smaller force t han static friction. Static friction had an clean of 5. 67 N of force while rolling friction only had an mediocre of 1. 33 N of force. Just for the record, sliding friction had an average of 4. 33 N of force. In this experiment, I learned that static friction has more force than I idea it did. In the beginning, I thought it was a very small force because I connected the word â€Å"static” to the static we watch on television when at that place is no connection.That is wherefore I though that it was a weak force. It turn stunned to be the other way around. I did do one experimental error which was that there was no cover on the textbook I was using. Some other experimental errors could have been that the wooden planks were defected or the spring scale was defected. Some humane errors might have been that I read the spring scale wrong. Another error would be that when I calculated static friction, the book might’ve slid without me noticing. The results I came up with at the end turned out to be the way I predicted.My results did in situation digest my hypothesis. VII. Conclusion After all the experimentation, I figured out that static friction is the largest force of rolling and sliding friction, and that rolling friction is the smallest of the forces. VIII. lieu Lab Questions Q: Which type of friction was the largest? Which was the smallest? A: The largest type of friction was static friction. The smallest was rolling friction. Q: Do the results support your hypothesis? If not, how would you revise or retest your hypothesis?A: The results do support my hypothesis. Q: Compare your results with those of another group. ar there any differences? By working together, human body a way to improve the experiment and determine possible differences. A: In the group that I compared with, the results were not that different. The results were infact very similar. The only thing that had a big jump was the average of the static friction. My averag e was 5. 67 N and his was 7. 33 N. I conjecture this is because I did not have a cover on the textbook, but he did.\r\n'