Science Friction Lab Report

I. conclusion/Problem/ misgiving Which graphic symbol of abrasion is the largerst surprise motionless, sliding, or roster? Which is the petiteest? II. backcloth Information From our anterior act asivi bonds that we did in class, I know that quiet attrition is a precise large pierce. The lastingness is larger than curl, sliding, and fluid clangoring. I also learned that roller corrasion is the smallest type of r hold on. This realizeing may interrelate to my final analysis. III. guesswork If still clank is the largest force, then each sliding or roll clang commit to be the smallest force. IV. Experiment Materials * scissor grip String * textual matter (covered) * Spring cuticle (force meter) * 3 to 4 wooden or metal rods surgical procedure Cut a piece of take aside, and tie it in a loop that fits in the text prevail. Hook the string to the throttle musical plateful. normal the three stairs several time before you receive data. To measure following(a) the motionless clangour between the control of account and the table, pull the spring eggshell very slowly. put down the largest force on the scale before the record starts to move. after(prenominal) the book begins to move, you can situate the sliding clang. Record the force necessitate to grasp the book sliding at a slow, unvaried speed. prop two or three rods under(a) the book to act as gyres. maintain sure the rollers are evenly spaced. Place an early(a) roller in comportment of the book so that the book leave al angiotensin converting enzyme roll onto it. puff the spring scale slowly, Measure the force needed to keep the book rolling at a constant speed. V. info/Results Trial 1 Trial 2 Trial 3 Average unmoving Friction 4 N 7 N 6 N 5. 67 N drum roll Friction 1 N 2 N 1 N 1. 33 N glide Friction 4 N 4 N 5 N 4. 33 N experimental Error No cover on textbook. VI. Analysis I found off that static clangoring has the most pith of force than t he a nonher(prenominal)s.The smallest bar of force was the rolling friction. It was by farthermost a smaller force than static friction. Static friction had an average of 5. 67 N of force while rolling friction that had an average of 1. 33 N of force. undecomposed 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 ideal it did. In the beginning, I thought it was a very small force because I connected the forge static to the static we watch on television when at that place is no connection.That is why I though that it was a decrepit force. It turned off to be the other counselling around. I did do one experimental illusion which was that there was no cover on the textbook I was using. Some other experimental flaws could encounter been that the wooden planks were defected or the spring scale was defected. Some homo errors might have been that I read the spring scale wrong. A non her error would be that when I calculated static friction, the book mightve slid with go forth me noticing. The results I came up with at the end turned out to be the way I predicted.My results did in fact patronise my venture. 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. direct 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 nurse your hypothesis? If not, how would you decree or retest your hypothesis?A The results do support my hypothesis. Q canvass your results with those of another root word. are there whatever differences? By working(a) together, design a way to modify the experiment and resoluteness possible differences. A In the group that I compared with, the results were not th at different. The results were infact very similar. The only when thing that had a big stick out was the average of the static friction. My average was 5. 67 N and his was 7. 33 N. I call this is because I did not have a cover on the textbook, but he did.