write a formal lab report

little m Bigm mi = 100-19 = 0.1001 10, paper clip = 100. 2= INSTRUCTIONS: m 2 = 100 . 9 9 = 0. 1009 0. 1002 Fill in the table with units. "aexpt" is the average. 3SE is (3 times your SE) SE SD with paper clip % error a expt pulley. Part 1: Weigh m and M and connect with string. Hang over the M-m a Theory m M Draw a free body diagram for m and M. 0. 1009 0.1601 0 . 0608 0. 039 0. 0199 48. 97 0. 0006 0. 0004 Apply Newton's 2nd law and calculate the acceleration and the tension. kq kq (mean-3SE) = (0.0199- 3x 0:0004) = 0. 0079 M Free-body diagrams (one for each hanging mass): ( mean+3SE) = (0.0199+ 3x 0.0004) = 0.0319 m Is your theoretical value between meant3SE? If no, you have a systematic offset. my + paperclip Yes/ no Yes mg What effect does it have on the % error if you use different masses? If initially you used ma 50g and 50g+small attached mass, this time use 100g and 100g+small attached mass. Newton's 2nd law applied to each mass [2 equations] Part 3: Change your masses (see comment above). Measure acceleration once. Keep if MI : EFy = ma = - T + mg solve for a = (m-mz) your graph is straight (movement is smooth). M2 : EFy = mza = T- mzg ( mitmz ) ) ( mitmz)a = ( m , = mzig % error a measured a Theory M-m Mean m 50. 22 M Part 2: Release the heavier mass at the top and let it accelerate down without 0. 1511 0.1504 0. 000 7 0.0227 0.0113 colliding with anything. Display trial on a graph (velocity vs. time) with a linear fit on it. Find the slope. Step 3 Start a table with two columns in EXCEL. Trials and Acc m/s? Discussion and Conclusion: Thoroughly analyze the data from Part 2. Include random error discussion, result of 3SE test and systematic error if present. Do you think the Without storing trials (unless you save) repeat the process 10 total times and put data in assumptions are correct? What effect do you think friction might have on the table. Review if necessary how to calculate the mean of the accelerations, standard deviation and the standard error. Print out. acceleration? Would it be a lower or higher acceleration if friction is a factor (if revealed report. Print one trial (any single trial) for an example trial. These printouts will go in your by 3SE test)? Briefly discuss results from Part 3. Do you think smaller masses had a smaller % difference Part 1.) Calculate the theoretical value of the acceleration (equation below is derived from the or greater, or too close to call? Why? a = 9 0 . 1009 - 0.10 01 (M - m) a =g (M + m) 10.1009 + 0.1001 9 = 9.8 (0. 1009 - 0. 1001 0 - 1009 + 0.1001 a = 0.0390 0497